Shark diving vacation for 2 people, worth $7,000, at Gardens of the Queen, Cuba, courtesy of:
Avalon Cuban Diving Centers  

6-day diving trip for 1 person in Protea Banks, South Africa, with Roland Mauz, including 7-night accommodation in the Diver Villa in Margate, courtesy of:
African Dive Adventures

5-night diving holiday at Shelly Beach, South Africa, including accommodation and dives for 1 person, courtesy of:
Aqua Planet Dive Centre