Karratha Back Beach boat ramp is a public launch facility serving boaters heading out to the Dampier Archipelago's 42 islands.

It is one of several public ramps in the City of Karratha region and is a recognised departure point for fishing, snorkelling, and island exploration in the West Pilbara.

Tidal conditions in this area are significant, and the ramp requires a minimum tidal depth of 2. 4 metres for most vessels, so trip planning around tidal windows is essential.

Like most public ramps in the Karratha area, no dedicated toilet facilities are located within close proximity to the ramp. Boaters should note the ramp has been subject to storm damage in the past and may be periodically closed for repairs.