Free drop-in nature discovery at the Presidio Field Station

Wed–Fri 11 AM–4 PM; weekends 10 AM–5 PMCheck the official terms for applicable locations

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Check eligibility first

Free for everyone, with no tickets or reservations for individual families; school and youth groups are encouraged to schedule ahead.

Grassy slopes and paths at Presidio Tunnel Tops, with the bay in the distance — Presidio Tunnel Tops, 2023 archival photograph; not the 2026 festival or its day-of setup.
Archive photo · 2023Frank Schulenburg · CC BY-SA 4.0 · Resized and compressed; cropped on cards(opens in a new tab)Image license(opens in a new tab)

How to use this benefit

At 603 Mason Street beside the Tunnel Tops Outpost play area. Indoor specimens and discovery tools suit a short foggy-day family outing; regular public hours exclude Monday and Tuesday.

Check the official page for current eligibility, availability and participating locations.

Reviewed 2026-10-02 · Presidio official free-entry and family-visit FAQ