ClubHawaii, an online travel guide, is extending free memberships to all military people who are from Hawai'i or stationed in the Islands, and are serving or have served in Iraq or Afghanistan. ClubHawaii is also extending free membership to families of the military personnel as a way for service people and their families to plan for their return.

ClubHawaii pulls all of its content from insiders who have lived in Hawai'i for more than five years, offering its members detailed information on activities, attractions and accommodations on every island. A questionnaire helps build an ideal itinerary. The offer is through Dec. 31. Call 261-0964 or e-mail sheila@clubhawaii.net.

Bike this way: Discover the hidden hiking trails of O'ahu's lush volcanic rainforest. Bike Hawaii's Rainforest to Reef Adventure starts with a hike in the Ko'olau mountains followed by kayaking and snorkeling in Kane'ohe Bay. This moderate 2-mile roundtrip guided hike along a dirt trail explores 75 acres of sacred land exclusive to the guests of Bike Hawaii. Visit a 200-foot private waterfall, cross through streams and pools, and view ancient lo'i (rock terraces) set in the lush tropical vegetation. Hiking time is approximately 1.5 hours.

This adventure is available on its own, or can be combined with other adventures on the same day. $150. Call 877-682-7433, visit www.bikehawaii.com.

ResortQuest Hawaii options on Kaua'i and the Big Island include Kauai Harbor House, a three-bedroom beachfront estate, and the Kruse House and the Manager's House, recently added to Waimea Plantation Cottages, a compound of restored plantation homes in a beachfront setting. The Shores at Waikoloa and the Waikoloa Colony Villas feature villas on the Big Island's South Kohala coast. 866-774-2924, www.resortquesthawaii.com.

Four Seasons Resort Maui at Wailea is offering a sixth night free on bookings through Feb. 14. Rates start at $620 per night. 800-332-3442, www.fourseasons.com/maui.