I've had the worst time trying to find wedding cake ideas for a beach destination wedding but I love this. Most cakes I see are too "little mermaid" for me. This is getting classier, though I would change out the flowers for bright tropic flowers.
Seashell Seating Cards Instead of numbers to assign guests their tables, use names of seashells. Each type of shell represents a different table. Arrange seating cards and shells on aqua fabric to give the impression of water.