Tour companies try to curb use of full-face snorkel mask

West Hawaii Today file photo The Fair Wind II launches from Keauhou Bay. Fair Wind Cruises are one of the boat tour companies on Hawaii Island that banned customers from using full-face snorkel masks.

KAILUA-KONA — As concerns rise about the safety of full-face snorkel masks, more and more Hawaii Island tour companies are following the example of their island neighbors by banning the use of the masks on their boats.