Great Keppel is the largest in the Keppel Group of Islands, encompassing 1454 undulating hectares. The main development is concentrated on Fisherman’s and Putney Beaches, with most of the remaining area left in it's natural state. Eucalyptus dominated woodlands, heath lands, areas of ancient high dunes, a mangrove tidal creek, and white sandy beaches separated by cliff lines and rocky outcrops are some of the natural features that you will see. Some magnificent views of the island and its’ surrounds can be enjoyed from ridgeline and mountain top lookouts.

Amazing underwater seascapes can be found in Keppel’s surrounding reefs, with coral gardens and a myriad of colourful sea life. Sightings of marine turtles, dolphins, manta rays, dugongs, and migrating whales are not uncommon. Possums, flying foxes, and a wide variety of lizards are frequently sighted, and over 100 species of birds have been documented.

Great Keppel is located in the dry tropics, with hot and humid summers and drier and cooler winters. The average summer high temperature is 29c, and the average winter high is 23c. Average annual rainfall days are 87.