| Official Name: | Kalvøysund |
| Settlement Type: | Village |
| Pushpin Map: | Agder#Norway |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Southern Norway |
| Subdivision Name2: | Agder |
| Subdivision Type3: | District |
| Subdivision Name3: | Østre Agder |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Arendal |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Codes |
| Postal Code: | 4920 Staubø |
| Coordinates: | 58.5407°N 8.9768°W |
| Elevation M: | 11 |
| Elevation Footnotes: | [1] |
Kalvøysund is a village in Arendal municipality in Agder county, Norway. The village is located on the eastern shore of the island of Flostaøya, about south of the village of Kilsund and about northeast of the village of Narestø.
Kalvøysund was the site of an old German fortress to defend the coastline during the German occupation of Norway in WW2. It was located on the island of Flostaøya. This fortress was one of the largest, being 10 aces in area. The fortress included 50 bunkers and other buildings and 4 emplacements for artillery. After WW2 ended and Norway liberated, the Norwegian armed forces used it for military exercises. Now it is in the possession of the local authorities and is a tourist destination. [2]
1. "Kalvøysund, Arendal (Aust-Agder)". yr.no. Retrieved 9 December 2017. 2. Turistkontor, Arendal. “Kalvøysund Fort.” Visitnorway, Innovation Norway, 20 Sept. 2020, https://www.visitnorway.com/places-to-go/southern-norway/arendal/listings-arendal/kalv%C3%B8ysund-fort/7064/.