CAPE TOWN, South Africa – South African police have identified two Americans who died in a shark adventure boat accident as Cassey Scott LaJeunesse, 35, of Biddeford, Maine, and Christopher Tallman, 34, of San Francisco.

The Americans and a Norwegian drowned when their boat capsized after being hit by a freak wave in otherwise calm waters Sunday while they were on a shark cage diving expedition in Gansbaai, about two hours from Cape Town.

The town prides itself as the world’s capital for great white sharks, attracted by clear frigid waters and a big seal colony.

Thousands of tourists every year are lowered beneath the water’s surface in a sturdy cage to view sharks, which are attracted by fish and other bait.

The Cape Times newspaper said Tuesday that Tallman, 34, was retrieved from underneath the boat with a faint pulse but died onshore.

The newspaper reported that Tallman and LaJeunesse had been in South Africa for a week and had been due to fly home Tuesday.