Lighthouses Kavringsanden (5 - left in the foreground), Kavringen Northeast (right in the foreground) and Tingvallagrunnen
(in the background) in the port of Oslo in September 2008.
(Kavringsanden: height of fire 4 m,
range of light white 2 sm,
characteristic [VQ W] very quick flashing seamark,
int. No.: B 2429
Kavringen NE: height of fire 5 m,
range of light white 1 sm,
characteristic [Fl G 3s] one flash every three seconds,
int. No.: B 2428.2
Tingvallagrunnen: height of fire 4 m,
range of light white 2 sm,
characteristic [Q W] quick flashing seamark,
int. No.: B 2421)