Ask anyone new to McKinleyville when to walk the Hammond Trail and they'll probably say summer. Warm days, long light, the beach at the end of it. Ask the trail itself and you get a different answer, and late September is when the two stop agreeing.
The marine layer that sits over this stretch of coast all July and August has been clearing earlier through September, which means the dune corridor along Clam Beach is in full sun by mid-morning instead of staying socked in past noon. The northwest wind still shows up reliably in the afternoon, so a layer in your pack isn't optional past 1 p.m., but the trade is a longer window of clear morning walking than the trail offers most of the summer. That alone would be reason enough to reset when you think of this trail as being at its best. What's happening in the water and on the sand right now makes the case stronger.
Three Ways In, Three Different Walks
The Hammond Trail runs 5.5 miles along the old Hammond Lumber Company rail grade, from the Mad River in the south to Clam Beach County Park in the north, and it doesn't feel like the same trail depending on where you get on. Three access points cover most of what people actually use.
| Access Point | What's There | Best For Right Now |
|---|---|---|
| Hiller Park (Fischer Ave & Hiller Rd) | Restrooms, picnic areas, playground, sports fields, its own network of coastal meadow and forest paths | Families, dogs, an easy loop that doesn't require committing to the whole trail |
| Murray Road / Widow White Creek | Picnic area, bluff overlook of the Mad River, the interpretive loop trail | The best shot at seeing seals or otters without walking all the way to Clam Beach |
| Clam Beach County Park | Dune system, primitive campground, north terminus | Shorebird viewing at low tide along the exposed sand flats |
Parking is free at all three, and TrailLink also lists a fourth spot at 3451 Letz Avenue for anyone starting from the middle stretch.
The Murray Road bluff deserves more credit than it usually gets. Humboldt County's own trail page notes that its crest gives a wide overlook of the Mad River where seals and sea otters are commonly spotted, along with cormorants, grebes, herons, ducks and Aleutian geese working the river mouth. It's a five-minute walk from the picnic area to that overlook, not a mileage commitment, which makes it the easiest wildlife stop on the whole route.
The Shorebirds Are Already Working the Sand Flats
The Hammond Trail sits inside the Pacific Flyway, the migratory corridor that shorebirds follow down the coast from Alaska toward Central America, and late September lands squarely inside this year's movement window. Dunlins, western sandpipers and least sandpipers began working south through the beach zone in late August and keep at it through November. The place to see them is the open section of Clam Beach between the park access road and the dune camping area, where low tide exposes a damp sand flat below the storm berm that concentrates birds looking for an easy meal.
That means timing your walk to the tide matters more this month than it did in July. A high-tide walk along that stretch will mostly show you water and dune grass. A low-tide walk during the same week can put you within easy binocular range of three shorebird species at once, working the same forty yards of sand.
The Seals Are a Sure Thing. The Otters Are a Maybe Worth Trying For.
Harbor seals haul out at the Mad River mouth year-round, which is part of why the county steers hikers toward that Murray Road overlook regardless of season. They're not a fall-only sighting, but they're a reliable one, and a good rule along this stretch of coast is to keep at least 50 meters between you and any seal resting on the sand. A hauled-out seal that looks stranded is usually just resting between feeding trips, and the right response is to keep that distance and keep walking.
Sea otters are the newer story. They've been documented with increasing frequency in Humboldt County waters through the mid-2020s, as the species slowly extends its range north from its established population farther down the California coast. That doesn't make them common here yet, but it does make a sighting more plausible this year than it would have been five years ago. If you're trying to tell an otter from a floating log at a distance, the otter is the one chewing.
A Few Things That Have Changed at Clam Beach
The park itself isn't quite what longtime visitors remember. A few practical updates worth knowing before you go:
- Vehicles can no longer drive directly onto the beach. A wheelchair-accessible mat now leads from the parking area to the sand instead.
- The campground has 13 first-come, first-served sites with ADA-access features, if you're thinking about staying rather than just walking through.
- The dunes are nesting habitat for the Snowy Plover, and dogs need to stay on leash and away from the dune areas rather than roaming them, even where the beach itself allows off-leash time.
- The trail surface shifts along its length, from paved sections near Hiller Park to gravel and dirt closer to the dune camping area, so a road bike will struggle in the soft sand where a hybrid or hardtail won't.
None of these are dramatic changes, but they're the kind of detail that separates a trail you've walked a dozen times from a trail you actually know.
Where to Go After
McKinleyville has a couple of easy stops for closing out a trail walk without driving far. Six Rivers Brewery, a women-owned brewery, is one of the county's more notable, and Bigfoot Taproom has become another local option for a drink after you've shaken the sand out of your shoes. Neither requires planning a full evening around it. Both are close enough to the trail that they function as a natural last stop rather than a separate errand.
The version of the Hammond Trail most people carry in their head is a summer trail: warm, crowded, foggy until noon. The one that's actually out there right now is clearer in the mornings, thick with migrating shorebirds at low tide, and carrying at least a small chance of an otter that wouldn't have been worth watching for a few years back. That's not a reason to wait for next July. It's a reason to go this week.
If you've lived near this trail long enough to notice how much it changes by the month, you already understand something about McKinleyville that doesn't show up on a map. Redwood Realty spends as much time paying attention to the ground itself as to the listings on it, and we're always glad to talk through what a particular stretch of this coast is actually like to live near, season by season.
