Seven Lakes Basin / High Divide Loop

Why go

This is Olympic’s marquee backpacking loop: roughly 18–19 miles total starting and ending at the Sol Duc Trailhead. You get mossy old‑growth forest, a photogenic waterfall warm‑up at Sol Duc Falls, a lake‑studded alpine basin, and a high‑ridge traverse with big views of Mount Olympus and the Bailey Range. It’s moderate to strenuous thanks to sustained climbs and about 4,000 feet of gain, but the payoff is huge.

The experience

Most hikers go counterclockwise: Sol Duc Falls → Deer Lake → High Divide → Seven Lakes Basin → Sol Duc Park → back to Sol Duc Falls. The approach climbs through lush forest to Deer Lake before breaking into subalpine meadows and the High Divide, where the panoramas kick in. The Basin is dotted with clear lakes—Lunch Lake and Heart Lake are the headliners. Expect a steep sting climbing out of Lunch Lake’s valley, then airy ridge walking before a long descent through Sol Duc Park. The trail is well‑established with a few creek crossings; near the trailhead it can feel busy with day‑hikers around Sol Duc Falls, but the Divide itself feels properly wild.

Camping and logistics

Overnight camping is in designated sites only (Deer Lake, Lunch Lake, Sol Duc Park, Heart Lake). Wilderness permits are required and summer spots—especially Lunch Lake—fill quickly. Bear canisters are required for all food and scented items throughout this loop. Important: between Heart Lake and Deer Lake there are very few campsites and little water; plan your day’s mileage and tank up before committing to that stretch. Strong parties sometimes do this in a single long day, but most take 2–3 days. A short detour to Bogachiel Peak adds even bigger views if you have the legs. If you fish, several lakes hold fish, but some—like Heart Lake—are fishless.

Best time to hike

Mid‑July through September is the prime window. Snow can linger into July and often returns by October; late September brings excellent fall color in the meadows and huckleberry patches. Weather changes fast—carry layers and be ready for lingering early‑season snowfields. Start early to beat crowds near Sol Duc Falls and to make campsite check‑ins smoother. Day hiking doesn’t require a backcountry permit, but you’ll need a park entrance pass for parking.

Wildlife and what to look for

Keep an eye out for black bears (often foraging in the basin), elk, deer, and marmots. Give all wildlife ample space and keep that bear canister sealed. In late summer the huckleberries and wildflowers light up the subalpine meadows. The basin’s lakes and the Divide’s rugged ridges were carved by ancient glaciers—easy to appreciate from any overlook.