What is "muck diving"
The phrase – coined by PNG scuba legend Bob Halstead to describe diving off the black sand beaches of Milne Bay, Papua New Guinea – has gained currency among those drawn to “macro” life: small fish, molluscs and other creatures referred to as “critters”.
http://www.telegraph.co.uk/travel/activity-and-adventure/a-beginners-guide-to-muck-diving/
Tags: muck diving, scuba