The 1859 American military encampment at the island's south end, now the southern unit of San Juan Island National Historical Park. Open coastal prairie rolls to bluffs above the English Channel. Officers' quarters and laundress quarters survive on site; bald eagles and red foxes are common in the open meadows.
The only Washington state park designed specifically for watching whales from shore. Lime Kiln Lighthouse stands on the island's westernmost bluff above Haro Strait — one of the most reliable land-based orca-watching sites in the world. A seasonal naturalist station operates on site.
A 1935 Art Deco lighthouse at the southeastern tip of San Juan Island, marking the southern entrance to San Juan Channel. The headland is open year-round with sweeping views toward the Olympic Mountains. Named in 1841 by the Wilkes Expedition — the first geographic feature named in the Pacific Northwest.
A research and interpretive museum in Friday Harbor dedicated to the cetaceans of the Salish Sea. Skeletal mounts, research displays, and a real-time sighting station track the Southern Resident killer whale pods. The museum operates the Orca Network hotline and stranding response program.
The British Royal Marines garrison at Garrison Bay, forming the northern unit of San Juan Island National Historical Park. A formal garden, barracks, blockhouse, and commissary survive from the 1860s joint-occupation period. The Young Hill trail begins at the site and climbs to the island's highest open summit.
A historic resort village at the island's north end built around a 19th-century lime works. Hotel de Haro is one of Washington's oldest continuously operating hotels. Grounds include the Art Deco McMillin Mausoleum in a forest clearing and the International Sculpture Park above the marina.
From Hotel: 15 min → San Juan Islands Sculpture Park
1.San Juan Islands Sculpture Park~1 hr 30 min
A 20-acre outdoor gallery on the road into Roche Harbor, with more than 150 sculptures by local and international artists set along five trails through meadow, orchard, and pond. Works rotate through the collection and range from abstract steel to figurative bronze; the grounds double as a working orchard open for foraging in season.
A sheltered bay on the island's northwest shore, calm enough for a first-time kayak launch and shallow enough to see the bottom on a clear day. Westcott Bay Shellfish Company farms oysters and clams along the shoreline and sells them straight off the dock — a picnic table and an oyster knife are the whole operation.
A 12-acre park on rocky bluffs above Haro Strait, one bay south of Lime Kiln — a quieter alternative for the same shore-based orca watching, with views across to Vancouver Island and the Olympic Peninsula. The park doubles as a first-come campground and a put-in for sea kayaks heading down the west side.
A quiet picnic beach on Griffin Bay, inside the American Camp unit of San Juan Island National Historical Park — site of the island's first non-Native settlement. A few hundred feet of gravel shoreline face Lopez Island and Dinner Island across the water, with a mowed field behind for a ball game or a blanket.
Two miles of gray sand, pebbles, and driftwood facing the Strait of Juan de Fuca — the longest public beach in the San Juan Islands. The South Beach Trail reaches it on foot from the American Camp Parade Ground, passing below the Redoubt with views west to the Olympic Peninsula and east to Mount Baker across Griffin Bay.
Half-day whale-watching cruise departing the Friday Harbor waterfront, with an onboard naturalist targeting Southern Resident orcas, humpbacks, and minke whales in Haro Strait.
Foreign number: accepted. — the code arrives by SMS on an international number, though a US number avoids the occasional verification delay.
The only delivery app that reaches Friday Harbor, and even here the list is a few pizza and pub kitchens within a mile of the ferry, with drivers thin after 8pm and nothing delivered to the north end of the island. Most evenings the practical answer is a five-minute walk to a restaurant.
Foreign number: accepted. — the code comes by SMS to any international number, and "Call me with code" reads it out if the SMS is blocked.
Works in name only on San Juan Island — a handful of drivers in summer, often none at all off-season, so a request from Friday Harbor can sit unanswered for half an hour. Keep it as a backup and book the island taxi or the seasonal San Juan Transit shuttle for Lime Kiln and Roche Harbor instead.
In June 1859, an American settler on San Juan Island shot a Hudson's Bay Company pig that had been rooting through his potato garden. What followed was one of the stranger episodes in US–British relations: each side sent troops, escalating to over 400 American soldiers and 5 British warships in the harbor, while the two commanding officers on the ground independently decided they had no intention of starting a war over the incident.
For 12 years, US and British soldiers occupied opposite ends of the same 55-square-mile island under formal joint military occupation, sharing whiskey and celebrating each other's national holidays. Kaiser Wilhelm I of Germany, asked to arbitrate, ruled in favor of the United States. The British garrison left peacefully. The pig, which started the whole thing, was the only casualty of the entire affair — and the reason Day 1 and Day 2 of this itinerary visit opposite ends of the same island.