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Photo courtesy of Jose Luis Zapata Photography

Designer Lara Goldman's Lemon Crush wedding bikinis are hand-sewn with vintage estate-sale broaches. Perfect for your catamaran wedding. (From US$300)

Spend

Chris Kole’s elegantly simple sundresses are suited for tropical heat. Brides visit The Cotton Bride in NYC for gowns like the Malaika, a French stripe cotton lace number. (US$1,990)

Splurge

Formal seaside nuptials? Wedding dress designer Justina McCaffrey suggests going big and layered in lighter fabric like her strapless, organza confection, Novella. (US$5,500)

For the groom

Jeff Farbstein, head of Harry Rosen’s buying team, suggests an off-white sports coat and black linen trousers, flowing shirt and patent sandals for casual beach weddings. Don a full-out tux for a formal affair.