CRAYON SHIN-CHAN: JUNGLE THAT INVITES STORM

The Nohara family is on a cruise heading towards a tropical island when suddenly the ship is invaded by a large group of monkeys. The simians capture all adults and take them to a nearby isle while leaving all children behind. It is up to Shin-chan and his friends to find and save the grown-ups. (Source: Anime News Network) — Description from AniList community (anilist.co).