Mention the fact that you're a senior when you first make your travel reservations. All major airlines and many Norwegian hotels offer discounts for seniors. In Norway people over age 67 are entitled to 50% off the price of first- and second-class train tickets. Ask for the discount at the ticket office.
Members of AARP (formerly known as the American Association of Retired Persons), 601 E St. NW, Washington, DC 20049 (tel. 888/687-2277; www.aarp.org), get discounts on hotels, airfares, and car rentals. AARP offers members a wide range of benefits, including a subscription to AARP: The Magazine and a monthly newsletter. Anyone 50 or over can join.
Many reliable agencies and organizations target the 50-plus market. Elderhostel (tel. 877/426-8056; www.elderhostel.org) arranges study programs for those age 55 or over (and a spouse or companion of any age) in more than 80 countries around the world, including Norway. Most courses last 2 to 4 weeks abroad, and many include airfare, accommodations in university dormitories or modest inns, meals, and tuition. ElderTreks (tel. 800/741-7956; www.eldertreks.com) offers small-group tours to off-the-beaten-path or adventure-travel locations, restricted to travelers 50 and older.
INTRAV (tel. 800/456-8100; www.intrav.com) is a high-end tour operator that caters to the mature, discerning traveler, not specifically seniors, with trips around the world that include guided safaris, polar expeditions, private jet adventures, small boat cruises down jungle rivers, and trips to the Norwegian fjords.
Recommended publications offering travel resources and discounts for seniors include: the quarterly magazine Travel 50 & Beyond (www.travel50andbeyond.com); Travel Unlimited: Uncommon Adventures for the Mature Traveler (Avalon); 101 Tips for Mature Travelers, available from Grand Circle Travel (tel. 800/221-2610 or 617/350-7500; www.gct.com); and Unbelievably Good Deals and Great Adventures That You Absolutely Can't Get Unless You're Over 50 (McGraw-Hill), by Joann Rattner Heilman.