Star Clippers has buy-one-get-one-free fares on a trio of cruises. The twofer is available on the Thailand, Singapore & Malaysia trip departing April 29 from Phuket, Thailand; the Delightful Dervishes cruise departing Piraeus, Greece, on June 3; and the Bali Westward cruise that sails round-trip from Bali on Sept. 2. Prices vary. For example, the seven-night Greeceto-Turkey cruise starts at $819 per person double, plus $270 port charges — a savings of more than $1,600 per couple. Book by April 7. Info: 800-442-0551, www.starclippers.com/usdom/ specials/598bogosaledontmissout.html.