Stauper consists of 21 islands, including the larger islands of Betjenterholmen (0.03 square kilometres or 7.4 acres), Terneskjær, Teholmen, Stauperkollen, Kistholmen, Langholmen, Ærholmen, Stauperluva, Lyngholmen, Torgerskjær, and Helgerødskjær.

[1][3] The islands have deep bays, long straits, cliff formations, and round rocks and skerries.

Naturally occurring island plants include European red raspberry, Wild pansy, Sea thrift, and Yellow toadflax.

[3] Despite its location in-between Flautangen (Østerøya) and Lindholmen (Tjøme) in the Tønsbergfjord, the archipelago belongs to the municipality of Sandefjord.

[4] It is particularly popular during the summer months for recreational activities, including swimming, sunbathing, kayaking, diving, boating, fishing, and camping.