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 Denmark 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, 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 AARP: The Magazine and a monthly newsletter. Anyone over 50 can join.

Many reliable agencies and organizations target the 50-plus market. Elderhostel (tel. 800/454-5768; www.elderhostel.org) arranges worldwide study programs for those ages 55 and over.

INTRAV (tel. 800/680-2858; www.tourvacationstogo.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) and the bestselling paperback Unbelievably Good Deals and Great Adventures That You Absolutely Can't Get Unless You're Over 50 (McGraw-Hill), by Joann Rattner Heilman.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.