Bosco Adventure(1986)

Apricot, princess of Fountain land, is kidnapped by evil Hoodman and his mercenaries Jack and Franz to keep her away from returning to her home until the total eclipse of the Sun. Humanoid animals from Bosco forest, Frog, Tutty and Otter, help her out and agree to take her to her homeland, before it's too late. On they way over, they become plunged into many adventures where they show their willingness to help the others in need and importance of water—all-life enhancer.

(Source: Anime News Network)