Hamilton Island, Whitsundays, Queensland, Australia

Passage Peak looking over the Whitsunday Passage and Pentecost Island, both named by James Cook in 1770.
The following description is from
www.100magicmiles.com/index.php/intro-to-whitsundays/60-w...
Accessed 26 Jan 2012
'Introduction to the Whitsundays

The Whitsundays are a group of more than 150 islands and islets off the sub-tropical central Queensland coast of Australia between approximately 20° and 21° south latitude.

Among the world’s best cruising grounds, the islands offer an abundance of yacht anchorages each within easy sailing distance from the next.

Most of the islands are unspoilt national parks; seven have resorts.

The brilliant turquoise of the waters surrounding the Whitsundays is caused by the scattering of light by particles of fine sediments that come mostly from the river systems of the adjacent mainland.'

www.australiaforeveryone.com.au/places_whitsundays.htm