Disc Golf
Disc Golf Course Review – Lets you find and evaluate courses near you.
Hiking
Nobody hikes in LA – provides up to date hiking info for the LA area.
Spotting
Mushroom Foraging – This site presents the LA Mycological Society
Bird watching in L.A. – LACoBirds is for discussion of wild birds and bird watching in Los Angeles Co., CA.
Pasadena Bird Watching– Affiliated with the National Audubon Society; To bring the excitement of birds to our community through birding, education and the conservation of bird habitats.
FatBirder– Fatbirder – linking birders worldwide…
Bird L.A.– Bird LA is a project of Audubon California and the Audubon network in the greater Los Angeles Area.
Rock Climbing
Rock Climbing .com – list of many areas around Los Angeles for Climbing
Rock Climbing Gear – REI COOP is a good source for climbing gear in Los Angeles
Running
Running in Los Angeles – Several good runs in Los Angeles