Sucia Island Marine State Park sits at the northern edge of the San Juan Islands, about 2.5 nautical miles north of Orcas Island and roughly 25 miles west of Bellingham by water. It is one of Washington State's most beloved marine parks, accessible only by private boat or charter vessel, and it offers some of the most striking scenery in the entire Pacific Northwest. If you have ever seen it on a map and wondered how to get there, now is a good time to start planning.

What Makes Sucia Island Worth the Trip

Sucia Island covers about 562 acres and includes 77 boat moorage buoys, miles of hiking trails, sandstone formations sculpted by centuries of wind and water, and sweeping views of the Gulf Islands to the north. The island is shaped like a horseshoe, with several protected coves that make it a favorite destination for kayakers and sailboats alike. Fossil Bay, Ewing Cove, and Echo Bay each offer their own character, from calm anchorages to dramatic rock formations.

Washington State Parks manages Sucia as a marine state park, which means there are no roads, no cars, and no ferry service. Everything you bring in, you carry out. The island has pit toilets and fire rings at designated sites, but potable water is not available, so visitors need to come prepared. Dogs are welcome on leash.

The geology is one of the park's most memorable features. The sandstone shoreline has been worn into honeycomb patterns, arches, and tidal pools filled with sea stars, anemones, and small fish. Low tides reveal a remarkable stretch of fossil-bearing rock. The trails are relatively easy, connecting the various bays and coves across the island's interior.

How to Get There From Bellingham

Because Sucia is only reachable by boat, getting there requires either your own vessel or a charter. Several operators serve the Bellingham and Whatcom County area and can get you out to the San Juans in style.

San Juan Cruises operates out of Bellingham's Fairhaven district and runs whale-watching and island excursion trips throughout the season. Their boats are comfortable and well-suited for visitors who want a guided experience without needing to captain their own vessel. Check their schedule for trips that include Sucia Island or nearby destinations in the San Juan archipelago.

Island Opportunity Charters is another local option that offers private and small-group charters around the San Juan Islands. Private charters give you the flexibility to spend more time at anchor and explore the coves at your own pace, which is particularly appealing for Sucia given how much the island rewards slow exploration.

Outer Island Excursions rounds out the charter options for Whatcom County visitors. Some of these tours are seasonal, running primarily through the summer months and into early fall, so if you are reading this in mid-September, you may still catch a late-season trip before the schedules wind down for the year. If not, the operators are already booking for the 2027 season, and early reservations tend to fill faster than people expect.

If you have your own boat, the nearest launch points are Bellingham's Squalicum Harbor Marina, which offers guest moorage and fuel, and the Anacortes area, which cuts down the crossing distance. The trip from Squalicum Harbor to Sucia's Fossil Bay runs approximately 25 to 30 nautical miles depending on your course, a comfortable half-day cruise in good conditions. The straits between the mainland and the islands can be windy and choppy, especially in the afternoon, so early morning departures are strongly recommended. Check NOAA marine forecasts before you leave the dock.

Planning Ahead for 2027

September is the shoulder season for San Juan Islands boating. The summer crowds have thinned, the weather can still be excellent, and moorage buoys are easier to snag on a weekday. But the window is closing. By October, many charter operations shift to reduced schedules, and the marine parks see far less traffic through the winter months.

For those who miss the 2026 season, the good news is that planning now for 2027 puts you in a much better position. Washington State Parks' online reservation system for moorage buoys opens months in advance, and Sucia is popular enough that the best spots go quickly on peak summer weekends. Creating an account with Washington State Parks and setting a calendar reminder for when the 2027 reservation window opens is a genuinely useful move.

Charter operators like Island Opportunity Charters and San Juan Cruises typically open their 2027 booking calendars in late winter or early spring. If you want a specific date, especially a summer weekend, reaching out in February or March is not too early.

Whatcom County residents have a geographic advantage that visitors from Seattle or Portland simply do not have: Bellingham is closer to the San Juan Islands than almost any other mainland city in Washington. Squalicum Harbor is one of the finest small-craft marinas in the state, with full services, covered moorage, and easy access to Bellingham Bay. The Port of Bellingham has invested steadily in marina infrastructure over the years, making it an excellent home base for exactly this kind of Pacific Northwest island adventure.

What to Bring and What to Know

A few practical notes for anyone heading to Sucia for the first time. Bring all your own water, at least a gallon per person per day if you are staying overnight. The moorage fee for a buoy is currently $20 per night for vessels under 26 feet, with higher rates for larger boats. Payment is handled through the Washington State Parks self-registration system on the island.

Cell coverage on Sucia is limited to spotty at best, so download offline maps and have a VHF radio on board. Marine channel 16 is the standard hailing and distress frequency monitored by the Coast Guard. A current tide table is essential for timing your arrival and departure, especially if you are anchoring rather than picking up a buoy.

Wildlife is abundant: harbor seals haul out on the rocks, river otters occasionally cross the trails, and bald eagles are a daily sighting. The birdwatching is excellent throughout the fall migration season, with a variety of shorebirds and waterfowl stopping over in the protected coves. If you have a kayak, bringing it along and paddling the perimeter of the island is one of the best ways to see the tidal formations up close.

Sucia Island is one of the genuine gems of the Pacific Northwest, and Bellingham is as well-positioned as any city in the state to make it a regular destination. For more on local parks, trails, and outdoor events in Whatcom County, check out this look at another great local park option closer to home.