N. Sanity Beach is first seen in Crash Bandicoot, where it has a brief role and has a level named after it. It is seen when Crash washes up on N. Sanity Island, although not much of it can be seen, despite the camera view in that area.
N. Sanity Beach can be see from the Secret Warp Room, on N. Sanity Island, in the distance, although it appears as a plain beach. It is also seen in the bad ending (shown if the player hasn't got 100% game completion), where Crash is lying on the sand with Coco as she wonders what happened to the Cortex Vortex.
Crash, Coco, Polar, and Aku Aku are on the beach in the intro at the point Uka Uka is freed. Also, it appears that Crash's house is near the beach, and the sand connects with the front yard of the of their house.
In this game, N. Sanity Island is a hub world in adventure mode, where it contains several tikis and pools, and a dock where the track, Roo's Tubes, is located. The tracks in it are Crash Cove, Roo's Tubes, Sewer Speedway, and Mystery Caves. Its crystal collecting arena is Skull Rock and the hub's boss is Ripper Roo. It also has the doors to the Gem Stone Valley and Glacier Park hub worlds.
The beach again appears in the intro, where it seems to expand around the entire island. Crash and his friends are seen relaxing. When The Elementals strike, the beach is hit with a small tsunami, washing away chairs and plants, and also hitting Aku Aku and Pura, who were on the beach at that time.
Crash, Coco, and Crunch are seen on N. Sanity Beach before Coco and Crunch are abducted. The beach seems to have many more plants scattered about.
N. Sanity Beach appears in the intro, where Crash's house is seen on it with some ancient columns and palm trees with ferns next to them.
The beach has massively expanded, and has many features to it: mountains, tiki statues, cannons, monkeys, crabs, seagulls, a chicken house, and various cliffs and beach supplies. Crash's house is now moved into the jungle and there is no more plants on the beach.
Crash of the Titans (GBA)
After N. Gin's invasion, N. Sanity Beach still remains, but now has a lack of plants, large rocks, and no connected jungle, but it is connected with several very large grass blade rows.