Public bathing is something like a national sport for Icelanders, so swimming pools and hot tubs come in all shapes, sizes, and variations around the country. Reykjavik's Laugardalslaug is the biggest one among them, and also the one providing the most family-friendly experience that includes a children's pool and a paddling pool. The experience is paid for unless you own a Reykjavik City Card for tourists that grants a free entrance to all parts of the establishment.