Nykvarnsgrund lighthouse in Österåker Municipality, August 2015. The islands of Tallholmen (left) and Koholmen (right) are in the background.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/97469566@N00">Bengt Nyman</a> from Vaxholm, Sweden
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/bnsd/20054705744/">D810_2164</a>