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 | From Sawmill to Seminary to Open Space | Friday, Jun 12, 2026 9:00 am |
| Bear Creek Redwoods Preserve | 3.5 |
Guided Activity | A Cool Summer Retreat | Friday, Jun 12, 2026 10:00 am |
| Long Ridge Preserve | 4.5 |
Guided Activity | Butterflies of Sierra Azul | Friday, Jun 12, 2026 10:00 am |
| Sierra Azul Preserve | 5 |
Volunteer Project | Rancho San Antonio Preserve - Trail Tools Maintenance: Foothills Field Office | Saturday, Jun 13, 2026 9:00 a.m. | Rancho San Antonio Preserve | ||
Guided Activity | Sentinel in the Sky | Sunday, Jun 14, 2026 1:00 pm |
| Sierra Azul Preserve | 0.25 |
Guided Activity | Explorer Hike: Chestnut Blooms Abuzzing | Wednesday, Jun 17, 2026 10:30 am |
| Long Ridge Preserve | 3.5 |
Volunteer Project | Bear Creek Redwoods Preserve - Trail Maintenance: Lower Pete Siemens Trail | Saturday, Jun 20, 2026 9:00 a.m. | Bear Creek Redwoods Preserve | ||
Volunteer Project | Rancho San Antonio Preserve - Trail Maintenance: Wildcat Loop Trail (South Leg) | Thursday, Jun 25, 2026 9:00 a.m. | Rancho San Antonio Preserve | ||
Guided Activity | Trail Trek Thursday | Thursday, Jun 25, 2026 9:00 am |
| Monte Bello Preserve | 4.75 |
Guided Activity | Surviving Paradise | Friday, Jun 26, 2026 9:30 am |
| Monte Bello Preserve | 3.5 |
Volunteer Project | Skyline Ridge Preserve - Trail Maintenance: Horseshoe Loop Trail (Pt. 3) | Saturday, Jun 27, 2026 9:00 a.m. | Skyline Ridge Preserve | ||
Guided Activity | Explorer Hike: Law of the Land | Wednesday, Jul 01, 2026 10:30 am |
| Windy Hill Preserve | 3.5 |
Guided Activity | Early Morning Meanderings | Monday, Jul 06, 2026 8:00 am |
| Thornewood Preserve | 3 |
Guided Activity | Flowers: Up Close & Personal | Tuesday, Jul 07, 2026 9:00 am |
| Windy Hill Preserve | 4 |
Guided Activity | Scenic Aerobic Hike | Wednesday, Jul 08, 2026 10:00 am |
| Long Ridge Preserve | 5 |
