4. Sea of Stars, Vaadhoo Island, Maldives
No, this is not a photo shopped image, this place is real, and happens often. There is no guide, however, everyone will tell you to see it, therefore, counts as a guided type tour. These creatures are called dinoflagellates, they glow because of bioluminescence. They only light up where there is a disturbance in the water, hence why the shore is so stunning. They do not harm humans, in fact, you should jump in the water and swim. All of your movements will be followed by a lovely greenish blue current. This is romantic on any scale, and is a must see at least once in your life.