I have had a long time interest in UFO's, and indeed, have been abducted, experienced missing time, and have(had) alien hybrid children up there. For me, ET's are real, nearby, and not introducing themselves at this time because of the non-interference policy, similar to 'Prime Directive' of Star Trek. First contact and Disclosure might not be that far off.
I have had visions of a far off water world in the Pleiadian system, a world almost completely covered by tropical water and reefs. If we look a little closer to home, the planet Mars has many anomalies, one of which seems to be evidence of a vast ocean in the distant past. Indeed, there is plant life and what look to be lakes on the surface of Mars. Globe hopping once more, I look to the writings of Alex Collier, an Andromedan contactee, who stated that there are vast lakes under the surface of the moon, and indeed, that the moon itself is a manufactured planetoid.
There are many stories, also, of an Inner Earth with a central sun, rivers, lakes, mountains, and a vast inner ocean. One witness of this was Rear Admiral Richard E. Byrd in 1947. Byrd flew to the north pole and instead of flying over the pole, entered Inner Earth. Olaf Jansen, a Norwegian, sailed into the Inner Earth, as described in his book 'The Smoky God'.
I would suggest that sometime within the next decade, we will make the collective leap into space and inner Earth and new frontiers will open up. One of these will be oceans and lakes of vastly different qualities, inhabited by unimaginable creatures and corals. And many of us will have the opportunity to take to the waters.
I post this here because Wetpixel is cutting edge in many ways, two of which are the intellect of its members and the willingness to embrace any new frontiers, be they technological or physical.