The Lafayette Reservoir is the heart of outdoor recreation in Lamorinda. A 2.7-mile paved loop circles the reservoir, making it perfect for walkers, joggers, and cyclists of all ages. On any given weekend, you’ll see families with strollers, serious runners getting their miles in, and retirees enjoying a morning constitutional.
The Rim Trail Loop
The main attraction: a paved, mostly flat 2.7-mile loop around the reservoir. It’s wide enough for bikes and pedestrians to share, with stunning views of the water and surrounding hills. Dogs are welcome on leash.
Pace and direction: Counter-clockwise is the dominant direction — it’s not a rule, but the regulars expect it, and the early-morning rhythm runs that way. A brisk walking pace puts the full loop at about 50–55 minutes; a casual loop with kids or a stroller is closer to 70–80 minutes. Joggers typically finish in 25–32 minutes. The course climbs about 200 feet total in gentle rolls, with the steepest pitch on the east side near the dam.
Best windows:
- Before 8 AM: quietest of the day, coolest temperatures, prettiest light on the water. Pre-dawn veterans and earbud joggers dominate.
- 8–9:30 AM: the social peak — walking-and-talking pairs, strollers, dogs.
- 10:30 AM–3 PM weekdays in summer: hot, exposed, lighter foot traffic. Bring water.
- After 6 PM in summer: sunsets through mid-July run past 8:25 PM, putting the most flattering hour of golden light on the reservoir between roughly 7:25 and 8:25 PM — the favorite local window for an after-dinner loop.
Etiquette, briefly:
- Walk right, pass left. Single-file when meeting oncoming traffic on the narrower stretches near the dam.
- Bikes yield to pedestrians; bikes also call out “on your left” — listen for it.
- Dogs leashed on the paved loop. The unpaved upper trails have their own (contested) rules.
- Don’t stop in the middle of the path to take a photo. Step to the side. The retirees behind you have a pace and they will defend it.
Sunset Hour at the Reservoir
The reservoir is one of the best free sunset venues in the East Bay, and the after-dinner loop is a Lamorinda summer ritual unto itself. A few specifics worth knowing:
- The golden window runs roughly the last 60 minutes before sunset, when low west-angle light hits the water and the eastern slope of Mt. Diablo at the same time. Counter-clockwise puts the prettiest views over your left shoulder during this window; many regulars switch to clockwise specifically for the last loop of the day.
- The cool-down: the temperature drops 6–10°F in the 20 minutes after the sun clears the western ridge — earlier than the published sunset by 25–40 minutes depending on time of year. A light layer in the backpack is the difference between a great loop and a short one.
- The dam pitch is in shadow first. The east-side rise near the dam falls into shade about 30 minutes before official sunset; if you want sun the whole loop, start counter-clockwise no later than 75 minutes before sunset.
- Closing time: the park closes at dusk. In practice, the parking lot gates close 30–45 minutes after sunset; rangers do a sweep. Don’t push it on a school night.
- The latest-sunset window of the year runs June 24 through July 1, with the literal apex on June 28–29 at 8:37 PM. From there the curve drops about one minute per night through the rest of the summer. This is the broadest after-dinner light window the reservoir gets all year — and the quietest hour of that window is 7:45–8:15 PM on a Sunday, after the weekend day-trippers have cleared and before the closing sweep.
Beyond the Loop
For more adventure, several unpaved trails branch off into the surrounding hills above the paved rim:
- Ohlone Point Trail — Climbs to a saddle with views of Mt. Diablo. Wildflowers (poppies, lupine) peak in March and April. Roughly 2 miles round-trip from the rim.
- Moraga Trail Connection — A dirt-trail link from the southwest corner of the rim that ties into the Lafayette-Moraga Trail network for a much longer outing.
- Upper fire roads — A mix of EBMUD-maintained roads on the ridges above the loop. Some sections allow off-leash dogs in off-peak hours; check current EBMUD signage at the trailhead before unclipping.
On the Water
- Row Boat & Pedal Boat Rentals — First-come, first-served at the Visitor Center from park-opening until 4:00 pm; all boats must be docked by 5:00 pm. $40 refundable deposit required, renter must be 18+. Rates run $15 for up to an hour, $22.50 for 1–1.5 hours, $25 for 1.5–5 hours, $35 for 5+ hours; non-holiday weekdays carry a 50% senior/disabled discount. (Note: stand-up paddle boards are not permitted.)
- Personal hand-launch boats — Allowed from park-opening until 4:00 pm with a $4 one-day launch fee and a $6 invasive mussel inspection (good for 30 days); inspect at the Visitor Center before launch.
- Fishing — Stocked with trout (November–March) plus catfish, bass, and sunfish year-round. California State Fishing License and an EBMUD Fishing Access Permit are required — the permit is sold at the Visitor Center.
Picnic Areas
Several picnic areas dot the shoreline, some with BBQ grills. Popular for kid birthday parties, post-graduation gatherings, and Father’s Day brunches. Reservations are available for the larger group sites — book several weeks ahead in May, June, and September, which are the busiest reservation months. (Note: picnic-site reservations are unavailable on weekdays through July 2026 due to ongoing EBMUD work; weekends still book normally.)
Good to Know
- Parking fee applies (free for EBMUD passholders)
- No swimming — it’s a drinking water reservoir
- Early mornings are magical — mist on the water, fewer crowds
- Weekends get busy — arrive early for parking
- Dogs allowed on leash on paved trails
Seasonal Tips
- The Late-June Sunset Apex — June 24–July 1, 2026: The widest after-dinner light window of the year. Sunsets crest at 8:37 PM on June 28–29, with the surrounding nights within a minute. The loop walked counter-clockwise starting around 7:15 PM puts you on the western shoreline at peak gold light around 7:55 PM and back to the parking lot just as the gates start closing. Weekday evenings this week are dramatically quieter than weekends — Wednesday and Thursday at 7:30 PM are essentially yours. (See the Sunday June 28 field report for the apex evening in context, and the Moraga Commons bandshell page for the same cool-down window from the concert-lawn angle.)
- The In-Between Week — June 1–7, 2026: This is the quietest the reservoir will be between Memorial Day and late September. Graduation weekend has cleared, summer camps don’t start until Monday June 8, and the after-dinner concert-night walkers haven’t kicked in yet (the Moraga Commons concert series opens June 11). The parking lot is genuinely half-empty at 8 AM on a weekday this week. If you have been meaning to do the loop, do it now — see the in-between week field notes and the 7:30 AM loop tribes guide for the full picture.
- Late May through mid-June 2026: The hills have finished their shift from emerald green into summer gold — the ridges read as solid honey-gold now rather than the two-tone look from a couple weeks back. Sunsets are past 8:25pm, which puts the last full hour of light on the reservoir between roughly 7:25 and 8:25pm — the prettiest window for an after-dinner loop. Mornings sit in the upper 50s and afternoons land in the upper 70s to low 80s; the boat-rental cutoff at 4pm means a 2:30–3pm launch is the sweet spot if you want the full hour on the water before docking by 5pm. Weekends remain busy — arrive by 8am for easy parking.
- Heads up — May 2026 weekday vehicle closures: EBMUD is running construction-related vehicle closures on select weekdays through May (most recently Tue–Thu May 26–28, 6am–2pm). Pedestrian access continues throughout, but if you’re driving in for a boat rental on a weekday, check the EBMUD Lafayette Reservoir page first. Picnic-site reservations are also unavailable on weekdays through July 2026; weekends still book normally.
- Late winter/early spring (Feb-Apr): The hills turn emerald green after rains. One of the prettiest times to visit, and prime wildflower window (poppies on the Ohlone Point Trail in March-April).
- Summer (June-Sept): Arrive before 8am to beat the heat and the parking crunch. The reservoir loop is fully shaded in pockets but exposed in others — bring water. Evenings after 6pm cool off nicely and the light on the water is gorgeous.
- Fall: Golden grasses and cooler temps make for ideal hiking.
Getting There
Main entrance on Mt. Diablo Blvd, about a mile east of downtown Lafayette. The lot can fill up on nice weekends — come early.
- From downtown Lafayette: 4 minutes by car east on Mt. Diablo Blvd; about 20 minutes on foot via the sidewalk along Mt. Diablo Blvd (the last stretch has a real shoulder but no separated path — fine for adults, less ideal for small kids on bikes).
- From Lafayette BART: roughly 1.5 miles; rideshare runs about $8–10, and several walkers do the BART-to-reservoir route as their morning loop in itself.
- From the Caldecott Tunnel: Highway 24 east, exit at Pleasant Hill Rd, take Mt. Diablo Blvd west — about 10 minutes from the tunnel portal on a normal morning.
- Parking fees (current): $7 weekdays / $8 weekends per vehicle. EBMUD passholders enter free. Cash and card accepted at the gatehouse.
Explore More in Lamorinda
- Lafayette Guide — Full overview of the town this sits in
- All Things to Do — More Lamorinda outings, parks, and venues
- Real Estate in Lamorinda — Buying or selling in Lafayette, Moraga, or Orinda