Sea Ranch to Laguna is 160.6 miles and takes about 3h 38m via Coast Highway and Dwight D. Eisenhower Highway, with a fuel budget near $36 and enough daylight to finish in a day. This drive takes you along the Pacific Coast within California, transitioning from coastal highways to inland freeways and then back to surface roads. The highway share is relatively low, suggesting a trip with plenty of opportunities to experience local scenery rather than just high-speed travel. Given the manageable distance and time, this route is ideal for a single-day excursion, allowing for a relaxed pace.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
80.3 miles from Sea Ranch, CA
A natural place for your longest stop of the day
, about 1h 58m into the drive
.
Main Roads
Road
Distance
Duration
Coast Highway
41.6 mi
59m
Dwight D. Eisenhower Highway
38.2 mi
44m
South Sacramento Freeway
7.4 mi
8m
Roblar Road
6.5 mi
8m
Jameson Canyon Road
6.2 mi
7m
Capital City Freeway
5.5 mi
6m
Valley Ford Road
5.5 mi
8m
Bay Highway
5.3 mi
9m
Longest stretch:
Coast Highway
— 41.6 mi, about 59m
Traffic on I-80
Hour-of-day weekday pattern from 23 FHWA count stations on your route.
Peak
3 PM
~4,091 veh/hr typical
Quietest
1 AM
~388 veh/hr
Peak-to-quiet ratio
10.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 13 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Sea Ranch, CA and Laguna, CA.
1
Start on CA 1
42 mi·59 min·Coast Highway
2
Continue on CA 1
0.2 mi·43 sec·Bay Highway
3
Turn right onto Eastshore Road
0.3 mi·50 sec·Eastshore Road
4
Turn left onto Bay Flat Road
0.1 mi·34 sec·Bay Flat Road
5
Turn straight onto CA 1
5.1 mi·8 min·Bay Highway
6
Continue on CA 1
2.9 mi·3 min·Valley Ford Cutoff
7
Continue on CA 1
5.5 mi·8 min·Valley Ford Road
8
Turn left onto Roblar Road
6.5 mi·8 min·Roblar Road
9
At end of road, turn right onto Stony Point Road
3.4 mi·6 min·Stony Point Road
10
Take the ramp
0.2 mi·22 sec
Toward US 101 South
11
Merge onto US 101; CA 116
4.7 mi·5 min·Redwood Highway
Use the straight / slight right lanes.
12
Take the exit onto CA 116
0.3 mi·55 sec·CA 116
Exit 472BToward CA 116 East: Sonoma, NapaUse the slight right lane.
13
Turn left onto Lakeville Highway
1.5 mi·2 min·Lakeville Highway
Use the left / straight lanes.
14
Turn left onto Frates Road
1.5 mi·2 min·Frates Road
Use the left lane.
15
Continue on Adobe Road
3.2 mi·4 min·Adobe Road
16
Continue on CA 116
3.3 mi·5 min·Stage Gulch Road
17
Continue on CA 116
1.6 mi·2 min·Arnold Drive
18
Enter roundabout onto CA 121
225 ft·3 sec·Fremont Drive
19
Continue on CA 121
4.9 mi·7 min·Fremont Drive
20
Continue on CA 12; CA 121
4.4 mi·6 min·Carneros Highway
21
Turn right onto CA 29
2.7 mi·3 min·Saint Helena Highway
Use the straight / slight right lanes.
22
Continue on CA 12; CA 29
1.3 mi·1 min·Napa–Vallejo Highway
23
Turn left onto CA 12
6.2 mi·7 min·Jameson Canyon Road
Use the left / uturn lanes.
24
Keep slight left at fork onto CA 12
0.3 mi·38 sec·CA 12
Use the straight / slight right lanes.
25
Merge onto I 80; CA 12
2.5 mi·2 min·Dwight D. Eisenhower Highway
Use the slight right lane.
26
Keep slight left at fork onto I 80
27 mi·31 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
27
Keep slight left at fork onto I 80
8.4 mi·9 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
28
Continue on I 80
3.7 mi·4 min·Yolo Causeway
Use the straight / slight right lanes.
29
Keep slight left at fork onto US 50; I 80 Business
5.3 mi·5 min·Capital City Freeway
Exit 82Toward Sacramento, South Lake TahoeUse the straight / slight right lanes.
30
Keep slight right at fork onto I 80 Business
0.3 mi·18 sec·Capital City Freeway
Toward I 80 Business East, CA 99 South: Reno, FresnoUse the slight right lane.
31
Take the exit
0.4 mi·34 sec
Toward CA 99 South: FresnoUse the straight / slight right lanes.
32
Merge onto CA 99
7.4 mi·8 min·South Sacramento Freeway
Use the straight / slight right lanes.
33
Take the exit
0.3 mi·38 sec
Exit 289Toward Cosumnes River Boulevard, Calvine RoadUse the straight / slight right lanes.
34
Turn right onto Cosumnes River Boulevard
0.3 mi·27 sec·Cosumnes River Boulevard
Use the left / right lanes.
35
Turn left onto Bruceville Road
2.7 mi·5 min·Bruceville Road
Use the left / uturn / straight lanes.
36
Turn right onto Seasons Drive
0.3 mi·50 sec·Seasons Drive
37
Turn right onto November Drive
0.1 mi·29 sec·November Drive
38
At end of road, turn left onto Mapleview Way
155 ft·12 sec·Mapleview Way
39
Turn left onto Fall Breeze Court
183 ft·8 sec·Fall Breeze Court
40
Arrive at destination
Fall Breeze Court
Trip Plan
Aim to depart from Sea Ranch in the morning to make the most of the 3h 38m drive time and the 160.6-mile distance. With a fuel cost estimated around $36, you should be able to complete the trip on a single tank, but it's always wise to top off before leaving. The route includes a longest stretch of 41.6 miles on Coast Highway, so plan for that segment to be your primary cruising experience. Since this is a single-day trip, you have the flexibility to stop as needed, but be mindful of the 8% highway share and the predominantly surface road profile, which might mean slower progress than expected.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 80.3 miles from Sea Ranch, CA, or about 1h 58m into the drive.
The longest continuous stretch on this route runs about 41.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 35 miles or 50m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 80.3 miles or 1h 58m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 1m
Traffic, exits, and arrival timing usually matter more near Laguna, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Sea Ranch, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Sea Ranch, CA
This is one driving day of about 160.6 miles and 3h 38m.
Your first comfortable stop window is around 35 miles from Sea Ranch, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Coast Highway for about 41.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
The midpoint is around 80.3 miles from Sea Ranch, CA, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 27
5 decision points cluster between mile 70.5 and 156.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
70.5 mi into trip|~1h 42m in|CA 116
Take the exit onto CA 116 toward CA 116 East: Sonoma, Napa
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 472B
Toward CA 116 East: Sonoma, Napa
6
91.2 mi into trip|~2h 14m in|CA 29 / Saint Helena Highway
Turn right onto CA 29 / Saint Helena Highway
Lane positioning matters here
Use the straight / slight right lanes.
9
143.4 mi into trip|~3h 15m in|US 50; I 80 Business / Capital City Freeway
Keep slight left at fork onto US 50; I 80 Business / Capital City Freeway toward Sacramento, South Lake Tahoe
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 82
Toward Sacramento, South Lake Tahoe
8
148.7 mi into trip|~3h 21m in|I 80 Business / Capital City Freeway
Keep slight right at fork onto I 80 Business / Capital City Freeway toward I 80 Business East, CA 99 South: Reno, Fresno
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 80 Business East, CA 99 South: Reno, F...
8
156.8 mi into trip|~3h 30m in
Take the exit toward Cosumnes River Boulevard, Calvine Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 289
Toward Cosumnes River Boulevard, Calvine Road
Fuel & Cost
Regular Gas
$36.40 one way
$72.80 round trip
$5.76/gal25.4 MPG avg56 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.96
$37.66
$75.32
premium
$6.09
$38.52
$77.04
diesel
$5.40
$34.16
$68.32
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$36
Meals
$25–$50
Total
$61–$86
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 56.2 kg one way.
Prices: EIA weekly data, 2026-04-20.
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $17 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
48.2
0
$16.86
$7.71
Efficient EV
40.2
0
$14.05
$6.42
EV Truck/SUV
64.2
0
$22.48
$10.28
Gas CO2
56 kg
EV CO2
19 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 25, 2026
Origin
Sea Ranch, CA
Evening
in Sea Ranch on Saturday
Local time
6:18 PM
PDT
Current temp
58°F
Mostly Cloudy
WSW 5 mph8% chanceLive forecast
Wind Advisory
Wind Advisory issued April 25 at 1:57PM PDT until April 26 at 11:00AM PDT by NWS Las Vegas NV
Wind Advisory
Wind Advisory issued April 25 at 12:10PM PDT until April 26 at 11:00AM PDT by NWS San Diego CA
Destination
Laguna, CA
Evening
in Laguna on Saturday
Local time
6:18 PM
PDT
Current temp
65°F
Mostly Cloudy
SW 12 mph9% chanceLive forecast
Wind Advisory
Wind Advisory issued April 25 at 1:57PM PDT until April 26 at 11:00AM PDT by NWS Las Vegas NV
Wind Advisory
Wind Advisory issued April 25 at 12:10PM PDT until April 26 at 11:00AM PDT by NWS San Diego CA
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
7 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 38m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Port Chicago Naval Magazine National Memorial
National Memorial
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
13 mi from route
~33 min detour
Free
near mile 105.2
From its thunderous ocean breakers crashing against rocky headlands and expansive sand beaches to its open grasslands, brushy hillsides, and forested ridges, Point Reyes offers visitors over 1500 spec...
18 mi from route
~44 min detour
Free
near mile 55.4
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
23 mi from route
~57 min detour
Free
near mile 99.7
Experience a park so rich it supports 19 distinct ecosystems with over 2,000 plant and animal species. Go for a hike, enjoy a vista, have a picnic or learn about the centuries of overlapping history f...
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
30 mi from route
~75 min detour
Free
near mile 77.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is mostly surface roads, with only an 8% highway share. You'll spend the majority of your time navigating at lower speeds, with the longest stretch on Coast Highway covering 41.6 miles. Expect to transition from coastal cruising onto the Dwight D. Eisenhower Highway and South Sacramento Freeway for portions of the trip, experiencing urban merging and dense exits before returning to surface roads. The profile indicates a drive that prioritizes local roads over continuous freeway travel.
Only 8% highway — the rest is turn-by-turn surface driving.
40 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 41.6 mi on Coast Highway.
How Hard Is This Drive?
10/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 70.5 miles in near CA 116.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 27 significant decision points across 160.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 70.5 miles (CA 116): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 91.2 miles (CA 29 / Saint Helena Highway): Lane positioning matters here; at 143.4 miles (US 50; I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Sea Ranch, CA and Laguna, CA, road signs point toward Napa, Sacramento, Lake Tahoe and Fresno.
Napa
70.5 mi in|~1h 42m|via CA 116
Sacramento
143.4 mi in|~3h 15m|via US 50; I 80 Business
Lake Tahoe
143.4 mi in|~3h 15m|via US 50; I 80 Business
Fresno
148.7 mi in|~3h 21m|via I 80 Business
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 38m. Total distance: 160.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 38m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 41.6 miles on Coast Highway. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Laguna, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 70.5 miles (CA 116): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 91.2 miles (CA 29 / Saint Helena Highway): Lane positioning matters here; at 143.4 miles (US 50; I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 3.6 hours each way, an in-and-out day trip would put you behind the wheel for 7.3 hours — manageable with a long break at Laguna, CA, but most travelers stay overnight.
