Most people picking a launch point in Marin grab the closest one. That works. But Marin's water options don't sit at the same level — they're built for different conditions, different skill ranges, and in one case, a seasonal rule most people don't know exists. The rule is this: Drakes Estero, the only marine Wilderness on the continental West Coast, has been closed to all boating since March 1. The National Park Service shuts it down every year from March 1 through June 30 to protect harbor seals during pupping season. It reopens July 1.
That date reorganizes the rest of the summer.
What Drakes Estero Actually Is
Drakes Estero sits inside Point Reyes National Seashore, west of Inverness. The estero holds one of the largest resident harbor seal populations on the West Coast, along with bat rays, leopard sharks, and a bird count that runs into dozens of species. The NPS designates it marine Wilderness — capital W — which means no motors, no overnight use, and the kind of stillness that's genuinely hard to find an hour from San Francisco.
The closure isn't a technicality most paddlers can work around. The launch site off Sir Francis Drake Boulevard is the only access point, and the NPS closes the entire estero along with Estero de Limantour, Double Point, and the western end of Limantour Spit. Regulations require paddlers to keep 300 feet from harbor seals in the water.
One thing worth knowing before circling July 1 on the calendar: July and August are open, but they're not Drakes Estero at its best. Afternoon winds come up quickly, and the estero's connection to the open Pacific means tides matter more than at the bay-side options. September through November are the strongest months — calmer wind, active wildlife, and none of the fog that layers over the water through most of August. July 1 is the starting gun, not the peak.
Sea Trek, the Sausalito-based outfitter that has been running guided trips since 1982, offers a full-day guided Drakes Estero trip once the season opens. They require kayaks of at least 12 feet given the distance and open-water exposure — the estero is not the place for a beginner on a rental paddleboard, and their guided dates fill early.
Four launch points, four different experiences:
- Drakes Estero / Estero de Limantour — NPS marine Wilderness, harbor seals, leopard sharks; closed March 1–June 30, opens July 1; guided trips through Sea Trek; best conditions September through November
- Richardson Bay, Sausalito — protected, calm, beginner-friendly year-round; Sea Trek rentals and houseboat tours launching from the Bay Model; 2026 summer youth camps available for ages 9–14
- Corte Madera Creek / China Camp (San Rafael) — Outback Adventures at Buck's Launching open weekends Memorial Day through Labor Day; 101 Surf Sports offers takeaway rentals; the creek is sheltered, China Camp opens to San Pablo Bay
- Tomales Bay, West Marin — bioluminescence night tours through Point Reyes Adventure Co.; day paddling accessible from Tomales Bay State Park and Miller County Park (Nick's Cove) on the east shore
Richardson Bay: The Option That Requires No Planning
Sea Trek operates out of the Bay Model complex on Marinship Way in Sausalito — free parking and direct water access without any shuttle or carry-in logistics. Richardson Bay is sheltered from the open ocean and from the stronger currents that make the Gate itself a different category of paddling. The result is water that's consistently calmer than anything outside the bay, which is why Sea Trek uses it as their base for rentals, tours, and the youth summer camps they're running through the 2026 season.
The standard rental puts you on the water facing the San Francisco skyline to the south, with the houseboat neighborhoods of Sausalito to the left as you head toward downtown. Harbor seals use the Sea Trek dock during pupping season, and the staff post distance reminders on-site. Their guided Sausalito Houseboats and Nature tour offers a structured paddle through the floating-home community for those who want context alongside the scenery.
For SUP specifically: Sea Trek stops renting paddleboards in the afternoon when wind picks up, a consistent Bay Area pattern from late morning onward. If that's your plan, morning is the window.
Corte Madera Creek and China Camp: Two Moods, One Drive
The east side of Marin offers two distinct paddling environments within a few miles of each other.
Corte Madera Creek runs about 2.25 miles and is one of the most beginner-friendly paddling routes in the county. The creek meanders through a slough environment, stays sheltered from wind, and connects to Piper Park — a county park with a dock and picnic areas that makes a natural midpoint stop. 101 Surf Sports in San Rafael offers takeaway kayak and SUP rentals for this route: you pick up the equipment and drive to your own launch point. Double kayaks run $125 for the first day.
A few minutes north, Outback Adventures operates Buck's Launching at the mouth of Gallinas Creek, adjacent to China Camp State Park on San Pablo Bay. The location opens on weekends from Memorial Day through Labor Day, with hours from 11 a.m. to 5 p.m., subject to tides. Tides matter here: the launching and landing access changes with water level, and Outback posts updates when conditions affect the schedule. China Camp opens to more exposed paddling on San Pablo Bay for those who want something beyond the creek, and the village museum at lower China Camp is worth a stop if you're already there.
Tomales Bay After Dark
Point Reyes Adventure Co. runs bioluminescence night kayak tours on Tomales Bay out of West Marin. The owners, Liz and Dallas, are longtime local guides who have circumnavigated the full SF Bay Area Water Trail — the 225-mile loop — and keep group sizes deliberately small. The bioluminescence window is seasonal and depends on plankton activity, which makes advance booking the practical approach rather than last-minute planning.
Tomales Bay also has daytime launch points that don't require a guide. Hearts Desire Beach and Millerton Point in Tomales Bay State Park provide access on the western shore; Miller County Park at Nick's Cove sits on the east shore north of Marshall with a concrete boat ramp and pier. The bay runs 15 miles north to south, and conditions vary considerably — the southern end near Point Reyes Station is more exposed, the northern section narrows and shelters as you approach Dillon Beach.
How to Read the Full Season
The practical way to read Marin's paddling calendar is to treat July 1 as a reset. Before that date, the options are Richardson Bay, Corte Madera Creek, China Camp, and Tomales Bay. Those are strong options — the creek works well for beginners, Richardson Bay requires no advance commitment, and the Tomales bioluminescence tours are in a category by themselves. But Drakes Estero changes the range of what's possible, and it changes in one direction: more wildlife, more exposure, more of what makes Marin water different from anything else in the Bay Area.
After July 1, the complete circuit opens. September is when the Estero hits its stride: wind is lower, the seal population is active post-pupping, and the fog that sits over the water in July and August starts to clear. If you're scheduling one significant paddling outing for the summer, that's the window to hold.
Aviva Kamler is a fifth-generation Bay Area native and Sotheby's International Realty agent serving buyers and sellers across Marin County and San Francisco. If you're thinking about what it means to live and put down roots here, reach out to request a personalized home valuation.
