Bay Area Hiker: Hikes sorted by difficulty.

Greenbelt Alliance protects open space, promotes livable communities, and sponsors outings of all sorts, including hikes, bike rides and tours.

Hiking in Marin with Baby. Fifteen fun hikes in Marin for families with small children.

Marin County Open Space Website. Features include downloadable maps with trails and naturalist-led walk schedules (3 per week!).

Marin County Parks and Recreation Geographic Information System. Find and create custom maps of trails and more from the nearly 500 parks and recreation areas spread out throughout Marin.

MarinTrails.com. Five hikes for people carrying babies.

SF Gate's Get Outside! An easy to navigate website with lots of information on getting out into nature in the Bay Area.

Top seven beaches in Marin County

Add fun and adventure to walking/hiking:

Geocaching is a high-tech spin on the old-fashioned treasure hunt using hand-held GPS systems (Global Positioning System) for tracking down the cache via satellite. Caches are camouflaged containers containing little trinkets or perhaps geocoins, which are registered markers that can be traced and followed on the website.

Letterboxing is an intriguing mix of treasure hunting, art, navigation, and exploring interesting, scenic, and sometimes remote places.

Orienteering is an outdoor competitive sport that is similar to cross-country running, but with emphasis on map-reading and direction-finding skills.