Check out our event listing below to see everything that’s happening at Midpen! You can join a guided activity along the trails led by one of our docent naturalists, take part in a volunteer project to restore and maintain open space lands, visit with us at a community event or attend a public meeting. Click on the terms in the yellow boxes to create a filtered view by activity type, preserve or level of difficulty.
Some activities require online reservations. Details are provided in the description if reservations are required.
| Activity | Title | Date Sort descending | Category | Preserve | Miles |
|---|---|---|---|---|---|
Guided Activity | Sentinel in the Sky | Sunday, Oct 11, 2026 1:00 pm |
| Sierra Azul Preserve | 0.25 |
Volunteer Project | Habitat Restoration: French Broom Removal | Thursday, Oct 15, 2026 9:30 a.m. | Sierra Azul Preserve | ||
Volunteer Project | Volunteer Program Showcase: French Broom Removal and Interpretive Hike! | Saturday, Oct 17, 2026 9:00 a.m. | Saratoga Gap Preserve | ||
Guided Activity | Habitat Restoration & Interpretive Hike | Saturday, Oct 17, 2026 9:00 am |
| Saratoga Gap Preserve | 4 |
Guided Activity | "The Hills are Alive” Afternoon Loop | Saturday, Oct 17, 2026 2:00 pm |
| Long Ridge Preserve | 4.5 |
Volunteer Project | Siding Maintenance: Deer Hollow Farm | Monday, Oct 19, 2026 9:30 a.m. | Rancho San Antonio Preserve | ||
Guided Activity | Horseshoe Lake to Alpine Pond | Thursday, Oct 22, 2026 10:00 am |
| Skyline Ridge Preserve | 4.5 |
Volunteer Project | Siding Maintenance: Deer Hollow Farm (Pt. 2) | Monday, Oct 26, 2026 9:30 a.m. | Rancho San Antonio Preserve | ||
Guided Activity | Full Moonrise from Borel Hill | Monday, Oct 26, 2026 4:00 pm |
| Russian Ridge Preserve | 4 |
Volunteer Project | Habitat Restoration: French Broom Removal | Thursday, Oct 29, 2026 9:30 a.m. | Teague Hill Preserve | ||
Volunteer Project | Trail Maintenance: Virginia Mill Trail | Thursday, Oct 29, 2026 9:30 a.m. | El Corte de Madera Creek Preserve | ||
Guided Activity | Signs of Fall | Friday, Oct 30, 2026 9:00 am |
| Pulgas Ridge Preserve | 4.25 |
Volunteer Project | Habitat Restoration: French Broom Removal | Saturday, Oct 31, 2026 9:30 a.m. | Bear Creek Redwoods Preserve | ||
Guided Activity | Halloween & Hiking Hounds | Saturday, Oct 31, 2026 10:30 am |
| Pulgas Ridge Preserve | 2.5 |
Guided Activity | Hiking the Highlights | Monday, Nov 02, 2026 10:00 am |
| El Corte de Madera Creek Preserve | 4 |
