Glassy Ocean is a oVA anime that premiered in fall 1998, produced by Ai ga areba Daijobu.

About the production: the story comes from an original script, there is 1 episode of about 22 minutes and its current status is "finished".

Its main genres are drama and fantasy, with themes such as Time Manipulation, Elderly Protagonist and Achronological Order.

On AniList, Glassy Ocean has an average score of 63%, an average score, and appears on 4,140 users' lists.

Time has come to a standstill. A whale appears from a glassy ocean and spends half a day soaring gracefully across the skies. What makes this works extraordinary is the artist's decision to use the transparency and visual bulk of 3D computer graphics only for the un-moving ocean and glaciers. The people, whale, and ships are all hand-drawn, and with this contrast, he invites the viewer into a different world. This is a poem written in animation, the creation of a true fantasy. This project was a considerable under taking, and the results are marvelous. (Source: Anime News Network)

Official synopsis from AniList.