Nearly every attraction in San Diego offers a senior discount; age requirements vary. Public transportation and movie theaters also have reduced rates. Don't be shy about asking for discounts, but always carry identification, such as a driver's license, that shows your date of birth.
Members of AARP, 601 E St. NW, Washington, DC 20049 (tel. 888/687-2277 or 202/434-3525; www.aarp.org), get discounts on hotels, airfares, and car rentals. AARP offers members a wide range of benefits, including AARP The Magazine and a monthly newsletter. Anyone over 50 can join.
The U.S. National Park Service offers an America the Beautiful -- National Parks and Federal Recreational Lands Pass -- Senior Pass (formerly the Golden Age Passport), which gives seniors 62 years or older lifetime entrance to all properties administered by the National Park Service -- national parks, monuments, historic sites, recreation areas, and national wildlife refuges -- for a one-time processing fee of $10. The pass must be purchased in person at any NPS facility that charges an entrance fee. Besides free entry, the America the Beautiful Senior Pass also offers a 50% discount on some federal-use fees charged for such facilities as camping, swimming, parking, boat launching, and tours. For more information, go to www.nps.gov/fees_passes.htm or call the United States Geological Survey (USGS), which issues the passes, at tel. 888/275-8747.
Road Scholar (formerly known as Elderhostel, tel. 800/454-5768; www.roadscholar.org) arranges worldwide study programs for all ages, but the core demographic is age 50 and above. ElderTreks (tel. 800/741-7956, 0808-234-1714 in the U.K., or 416/588-5000 anywhere else in the world; www.eldertreks.com) offers small-group tours to off-the-beaten-path or adventure-travel locations (including Baja); restricted to travelers 50 and older.