The Army officer, who was living in Surrey, had been diving from a local boat on the Adamant Shoal, near Lulworth Banks, when she failed to return to the surface.

BBC: Weymouth Bay

"There's a big, active diving scene up here in the Lakes, which I am part of myself, and we know from regularly diving in our local lakes and quarries how cluttered with rubbish and debris they can be, " he said.

BBC: Windermere clean-up finds traffic cones, signs and shoes

Most of the up to 20 volunteers spend the first several days in intensive scuba-diving classes and lectures on coral reefs and the local environment.

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Local attractions include zip lines, cave and river tubing, scuba diving, jet skis and deep sea fishing.

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"They've left the mirrors inside the bathrooms, so you can actually take a look at yourself while diving, " says Jason Shaddox, an instructor with local dive company Don Foster's.

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Skydive Milwaukee, a sky-diving school, has for more than a decade hosted an annual Easter event for local kids featuring an airborne Easter Bunny.

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