Go to the Pine Grove on the Isle o' Hags and dive into the water. Find the underwater cave and swim into it.
Terrydactyland is one of the largest areas in "Banjo-Tooie." It takes players into the distant past, to the land of the dinosaurs. Once there, players can accomplish several game objectives and explore the entire zone in search of items. The journey to Terrydactyland begins in the Isle o' Hags — the game's main hub area, which allows players to venture into other zones and areas.
Swim through the cave and past the gateway. Klungo will appear and you will need to defeat him to continue.
Dodge the yellow potions Klungo throws out and attack him from behind to avoid his shield. Once you have successfully attacked him three times, he will run away.
Follow Klungo into the Wasteland in the Isle o' Hags. Talk to Jamjars, who is to the left of the entrance, to learn the Clockwork Kazooie Egg attack.
Continue heading left to find a split rock; the entrance to Terrydactyland is inside the crack.