Chris Lawrence dives to a depth of 100ft in a submarine at Patina Maldives He then heads to Huvafen Fushi's underwater spa, 'SpaQuarium' READ MORE: I'm a female solo traveller - there's a country I'll ...

Passengers look out the portholes of the Nautilus, a semi-submersible that operates out of Avalon on Santa Catalina. (Emerson Drewes / Los Angeles Times) As they do on any other sunny day, people ...