Black and Blue Scuba. Konaquatica Dive Center takes certified divers offshore during the day (blue water) to experience the marine life of the deep Pacific. At night, a blackwater dive observes as unearthly invertebrates swim through beams of powerful dive lights. Divers are secured to a line connected to the dive boat, and drift suspended about 60 feet below the surface. Daytime dives begin at $115. Night time dives begin at $175. www.konaquatica.com, 888-331-4386.

Captain Bean Cruises offers Friday-night sunset sails along the Kona coast aboard the catamaran Tamure, where there'll be live music, a drink and pupu. Departs the Kailua Pier at 5:30 p.m., returns at 7:30 p.m. $15, 808-329-2955.

Hotel Hana-Maui & Honua Spa kama'aina celebration rates include the Bay Cottage at $295 per night, Ocean View Sea Ranch Cottage, $395 per night, and the Deluxe Ocean View Sea Ranch Cottage with hot tub at $495 per night. Through February. A Hawai'i driver's license is required at check-in. 800-321-4262.

Whale sightings are guaranteed aboard the Star of Honolulu's Premier Whale Watch Cruise, or passengers receive a "whale check" for a free return trip. Hawaiian cultural activities included on the cruise; the crew includes certified naturalists. 11:30 a.m.-2 p.m. through April 30. $52.50 with lunch ($31 for ages 5-12); $36 without lunch ($22 for ages 5-12). www.starofhonolulu.com.

The Kahala Hotel & Resort will complete renovation of its main Tower Wing on March 15. In-room upgrades include 40-inch flat-screen televisions, high-speed Internet connectivity and deluxe beds. Rooms in the Dolphin Lagoon Wing will be closed from March 15 through June 30 for comparable upgrades. Room rates begin at $315 per room per night. www.kahalaresort.com.

Pleasant Holidays offers an opening special at the Westin Princeville Ocean Resort on Kaua'i, starting April 1. Rates begin at $1,640 double, for five nights for a savings of up to $1,456 on rack rates. Stays of five nights or longer earn a two-for-one activities coupon, a $130 value. 800-448-3333, www.pleasantagent.com.

Sweet Suite: ResortQuest Shores at Waikoloa and Waikoloa Colony Villas offer a Kama'aina Sweet Suite Golf for Two package that includes two rounds of 18-hole golf with share cart at Waikoloa Resort's Beach or Kings Course (additional rounds of golf may be purchased at $75 per person), and one Aloha Book per room worth up to $1,000, which serves as a guide to culture, history, cuisine and attractions on the island.

Rates at ResortQuest Shores at Waikoloa start at $268 per night for a one-bedroom deluxe suite, $288 per night for a two-bedroom deluxe suite. Rates at ResortQuest Waikoloa Colony Villas start at $295 per night for a one-bedroom villa and $315 per night for a two-bedroom villa.

Sweet Suite is available through Dec. 23 with a valid Hawai'i ID required at check-in. www.resortquesthawaii.com, 866-774-2924.

In-room entertainment: Aqua Hotels & Resorts has installed InnNetwork, an in-room entertainment and business technology system at Aqua's Waikiki hotels, The Equus and Hotel Renew. The system can be used as a personal computer and high-definition TV with access to movies, international TV, online books, games and satellite radio. Also included are hotel services, shopping and restaurants.

Travelers booked at Hotel Renew in guest rooms with a king bed have access to 32-inch high-definition monitors. Guests in rooms with two double beds, Renew Experience rooms, have the InnNetwork displayed by an 80-inch projection TV.

Online room rates begin at $154 per night; $189 per room per night for a Renew Experience room. www.hotelrenew.com, www.aquaresorts.com, 866-406-2782.

Park Pass: Commemorate 25 years of Kilauea's ongoing eruption with a Tri-Park Pass. The $25 pass allows entrance to Hawai'i Volcanoes, Pu'uhonua o Honaunau (Place of Refuge), and Haleakala (Maui) national parks for a year. 808-985-6151.