Tennis no Ouji-sama: A Day of the Survival Mountain - Kyoufu no Kyouka Training! is a oVA anime.

About the production: there is 1 episode of about 30 minutes and its current status is "finished".

Its main genres are adventure, comedy and sports, with themes such as Tennis, Primarily Male Cast, Primarily Child Cast and Male Protagonist.

On AniList, Tennis no Ouji-sama: A Day of the Survival Mountain - Kyoufu no Kyouka Training! has an average score of 67%, a good score, and appears on 2,441 users' lists.

Echizen and the Seigaku regulars took a day off of their normal routines and went hiking on a mountain, where a tennis resort awaits their arrival. Expecting to do some special training, the team reaches the destination only to find their precious tennis courts taken over by a group of college tennis players. However, Ryoma is more than happy to teach them a thing or two about how to play "real" tennis. (Source: Anime News Network)

Official synopsis from AniList.