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She is now a certified fish data scientist and divemaster, who spends much of her free time volunteering with the Reef Fund and describes the move as "the best decision I ever made".

Lewis became a divemaster and is now president of Texas Caribbean Charters, which takes about 1,000 people a year out on diving trips there, with about half making a return trip.

He says: “I was on a sabbatical from my job at a London prop-making company, and I was working as a divemaster. I was responsible for getting guests fitted with wetsuits. I definitely liked Susie as soon as I saw her.”

Eight of us travelers from all points on the globe had come together to live on a boat with our captain and our divemaster.

Smith is a scuba divemaster, while Allen is a scuba instructor.