November to April is high season. To get to the Osa, fly to San José and connect to Puerto Jiménez.
Black Turtle Lodge 011-506/735-5005; blackturtlelodge.com; tree houses from $95 per night, cabins from $85; meals included. Book early—there’s room for only 10 guests.
Bosque del Cabo Rainforest Lodge 011-506/735-5206; blackturtlelodge.com; cabins from $160 per night per adult, $75 per child, meals included; houses for up to six from $225 per night or $1,250 per week, meals not included.
Copyright © 2008, American Express Publishing. All rights reserved.