Today we did visit Seljavallalaug (GPS N63 34.013-W19 36.379) which is a
 hot spring pool near Eyjafjallajökull. The weather was nice and the 
pool was excellent, although it was not as warm as expected, but that 
will be better with warmer weather.
The information’s we did find about Seljavallalaug on Wikipedia:
Seljavallalaug
 is a protected 25-metre outdoor pool in southern Iceland. The pool is 
one of the oldest swimming pools in Iceland and was built in 1923. 
Seljavallalaug
 is located not far from the farmhouse of Seljavöllum. The construction 
was headed by Bjorn Andrésson Berjaneskoti, who received the 
Ungmennafélagið Eyfelling for the work. Courses in the pool were 
initiated as part of compulsary education in 1927. The pool is 25 metres
 long and 10 metres wide and was the largest pool in Iceland until 1936.
 
In 1990, a new pool about 2 km closer to the valley was built, but 
people can still go swimming in the old pool free of charge, but at 
their own risk. The pool is cleaned once every summer. Prior to that, it
 is often covered with thick ice, requiring care.
The 2010 eruptions 
of Eyjafjallajökull filled Seljavallalaug with ash. In early summer 
2011, a group of volunteers gathered to clean the pool with loaders and 
excavators.
Seljavallalaug
		