Once you arrive in Nassau, you'll clearly want to snap a few photos of the city, the coast, and the ocean. There aren't many attractions in the city itself, but the streets of Nassau, its waterfronts, and the famous Royal Staircase are certainly photo-worthy.
And just walk along the shore, see the night lights of the island, and you will definitely want to take a photo of Nassau at night. The famous Royal Gardens, a large botanical garden, will complete the beautiful photos of Nassau.
Either way, you'll be able to reminisce about your trip afterwards, realize that you really were in the Bahamas, and photos capturing Nassau by day or night will remind you of that.