On the way to Þingvellir (20 mins) the first part of the "Golden circle", the setting puts you at an immediate advantage.
Set in the lush valley of Mosfellsdalur yet less than 15 minutes away from Reykjavík centre.
A car is a must.
Family friendly but also good for couples and solo adventurers, or a small group of friends.
Walking/cycling paths in the area, horse rental nearby and two public swimming pools in the nearby town.
Five minutes drive to a local food mart and a delightful bakery.