One of my favourite parts of the Maldives are the jetties. They are like boulevard balconies to the spectacle of Maldivian marine life cavorting below often attracted to the pseudo-reef structure of the jetty itself. Resorts will often equip them with lighting which provides further attraction to the nocturnal creatures after dark.
Mostly these jetties take you to the arrivals welcome or the water villas, but Jumeirah Vittaveli has one which simply encircles part of the island. It really is more of a boardwalk than a jetty. And boardwalks are classic ocean-side features. Another benefit they bring is that people can walk along the water’s edge without the challenge of the sand if they are so disinclined (eg. less mobile folks, people dressed up for dinner).