Indonesia's second largest marine park, including four major islands and many atolls. Very high quality diving, bring your own kit though as this is off the beaten track in all senses. Fantastic atmosphere, relaxed environment and well worth the very long journey.
Get the Pelni from Makassar overnight to Bau-Bau, or fly from Makassar - Merpati now fly three times a week to Bau Bau. If going by Pelni, pay a bit extra for a first or second class cabin. The Wakatobi islands are 16-20hrs from Bau Bau by local ferry, which are not particularly hot on safety issues.