Kaholmen Beach is a rocky shoreline around the Oscarsborg islands. While it offers scenic bathing, the rocky nature means entry into the water might be less gentle than a sandy or pebble beach. Water conditions are generally calm within the fortress area. It's advisable for children to wear water shoes, and adult supervision is always recommended due to the rocky terrain.

The best time to visit Kaholmen Beach for pleasant weather and to experience fewer crowds is during the shoulder seasons, such as late spring (May-June) or early autumn (September). These periods offer comfortable temperatures for enjoying the island's scenery and the beach, while avoiding the peak summer tourist rush that can occur around the popular Oscarsborg Fortress.

Kaholmen Beach is located on one of the Oscarsborg islands, meaning boat access is required. Visitors typically take the ferry from Drøbak to Oscarsborg Fortress. Once on the island, the beach would be accessible by foot. It's an integral part of exploring the fortress area, offering a unique island bathing experience combined with historical sightseeing.

Kaholmen, being part of the Oscarsborg Fortress complex, offers some dining options, including restaurants and cafes, primarily catering to fortress visitors. For lodging, there might be limited options directly on the island, such as a hotel associated with the fortress. More extensive lodging and dining choices are readily available back in Drøbak, accessible via the ferry.

Kaholmen Beach is truly unique due to its location on an island within the historic Oscarsborg Fortress environment. It offers a rare combination of scenic rocky shoreline bathing with the dramatic backdrop of a significant historical site. The required boat access adds to its charm, making it an adventurous and culturally rich beach experience distinct from mainland options.