Henry Coe State Park is the largest state park in Northern California. It's 87,000 acres. And most South Valley residents have no idea it's right here, between Morgan Hill and Gilroy, ready to be explored.
This is not a casual afternoon park. This is backcountry hiking with real terrain, real distance, and real solitude. Which means it's awesome, and which also means you need to know what you're getting into.
Two Ways In: The Big Entrance and the Gentle One
The Main Entrance is on Dunne Avenue, east of Morgan Hill. This is where most trails start. You'll pass through a small ranger station—they charge six dollars per vehicle, and cash is preferred. The parking area is modest, which means the park doesn't get overrun like some Bay Area trails.
The Hunting Hollow Entrance is near Gilroy and offers gentler trails through grassland. If Dunne Avenue trails feel intimidating, Hunting Hollow is a better introduction. The paths are easier, the elevation gain is less brutal, and you can get a feel for the park without committing to a serious backcountry hike.
The Frog Lake Loop: The Gateway Trail
Distance: 8 miles round trip | Elevation: 400 feet gain, 600 feet loss | Difficulty: Moderate | Time: 3 to 4 hours
If you've never hiked Henry Coe before, start here. The Frog Lake Loop climbs from the parking area through oak woodland and grassland to Frog Lake (which is usually dry or a small pond—don't expect a big lake). The real payoff is the views and the sense of being in real backcountry even though you're 20 minutes from coffee shops.
The trail is well-marked. The elevation gain is manageable but real. You'll understand why locals love this park.
Timing matters. Go in March through May (water running, wildflowers) or October through November (perfect weather, golden grass). Summer is hot. Winter is muddy. Fall is ideal.
What You Actually See
Henry Coe is grassland and oak woodland. Not redwood forests or dramatic coastline. It's California interior landscape—open, exposed, with views across the South Valley and toward the Sierra Nevada. The park is in the rain shadow of the Coast Range, so it's dry most of the year.
That dryness has a payoff: the park is genuinely uncrowded. Popular Bay Area hikes like Mount Tamalpais or Band-Aid Trail draw hundreds of people on weekends. Henry Coe, even the popular trails, might have a dozen hikers on a Saturday. That's the advantage of the park's size and its sparser scenery.
Wildlife and Tarantulas
You'll see deer. You'll see coyote. If you're lucky, you'll see wild turkey and occasionally mountain lions (though encounters are extremely rare). The park is home to actual California wildlife, which makes hiking here feel less suburban and more real.
September through November is tarantula migration season. The big spiders cross trails in the mornings. They're not aggressive—they're actually timid and afraid of people. But seeing something eight inches across in the middle of the trail will make your heart jump. It's cool, even if spiders aren't your favorite.
Backcountry Camping and the Real Deep Park
Henry Coe has backcountry camping. If you're into serious hiking—multi-day trips, real elevation, navigating multiple trails—the park is set up for that. Backpackers sometimes spend three days in the park and barely scratch the surface.
Most of us aren't doing that. Most of us are doing day hikes. But it's worth knowing the park can handle serious hikers if you're interested in that level of adventure.
Water and Sun
This is important. Henry Coe is not shaded. Bring water—more than you think you need. Bring sunscreen. Bring a hat. The sun is real, especially March through October.
Most trails have water sources (creeks, ponds, cattle tanks), but they're not reliable year-round. Bring your own water. A hydration pack or bottles is mandatory.
The exposed landscape means afternoon sun is brutal. Early morning is better. You'll often see hikers heading out at dawn to beat the heat.
Why It's Mostly Uncrowded
This is the secret advantage. Popular Bay Area hikes are crushed on weekends. Henry Coe, even beautiful Henry Coe, stays quiet because the scenery is subtle (not dramatic peaks or redwood groves), the trails are longer than casual hikers expect, parking is limited by design, and most people don't know it exists or don't realize it's open to day hikers.
This means weekday hiking is genuinely peaceful. Even weekends are quieter than comparable parks. That's the gift of Henry Coe.
Practical Details
Hours: Sunrise to sunset. Dogs: Not allowed on trails. Camping: Backcountry only, requires reservations. Fees: Six dollars per vehicle (cash preferred). Parking: Limited; weekends can fill by early afternoon in nice weather. Restrooms: Basic pit toilets at the parking area.
Real Talk: This Isn't a Casual Park
Henry Coe is beautiful and uncrowded, but it requires respect. It's not a stroll-through-a-manicured-park experience. Trails are real trails. Elevation gains are real. You need to be in decent shape and bring proper gear.
The flip side: that's exactly why it stays uncrowded and why locals who find it fall in love with it.
The Bottom Line
Henry Coe is 20 minutes from home for Morgan Hill and Gilroy residents. It's 87,000 acres of actual California wilderness. It stays uncrowded because most people don't know it's there or don't think they're serious enough hikers to try it.
You probably are. Go. Start with Frog Lake. Bring water. Bring sunscreen. Give yourself half a day. See what's there.
This is what you have next door.
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