Author and photographer James Dorsey will share his images and stories in "Africa's Last Wild Tribes: The Omo Valley of Ethiopia."
When, where: 7 p.m. Tuesday at the REI store in Santa Monica, 402 Santa Monica Blvd.
Admission, info: Free. (310) 458-4370
Mort Loveman will present "Bermuda Triangle With NCL."
When, where: 1 p.m. Wednesday at Roxbury Park Community Center, 471 S. Roxbury Drive, Beverly Hills.
Admission, info: $1 for Beverly Hills residents; $2 for others. (310) 550-4761
"Preparing for Mt. Whitney" will offer tips on the permit system, nutrition, gear and more for climbing the California peak.
When, where: 7 p.m. Wednesdayat the REI stores in Arcadia, 214 N. Santa Anita Ave.; and Manhattan Beach, 1800 Rosecrans Ave., Suite E.
Admission, info: Free. (626) 447-1062 for Arcadia; (310) 727-0728 for Manhattan Beach.
"Traveling to Ecuador: Anything Is Possible" covers cultural sites, cities, remote villages and more.
When, where: 7 p.m. Thursday at the REI store in Huntington Beach, 7777 Edinger Ave., Suite 138.
Admission, info: Free. (714) 379-1938.
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