Tahiti is my dream destination because I'd love to spend a relaxing time by a beautiful ocean.
A website you should check out is http://www.tahiti.com. It consists of great pictures and activity ideas to be done there.
I imagine visiting this location and my experiences being like the image I illustrated below with me scuba diving through the deep blue ocean. Also I see myself sleeping calmly over the ocean sipping on a fresh cup of pina colada.