Furesö is a great and unspolied lake in North Sealand only 15 km North of Metropolis Copenhagen. The locals are calling the great lake for the "Sealand Inland Sea".
 
It defined Farum and Furesö Municipality's southeast border and is the site of Nicolai Eigtved's 18th century small pleasure pavilion for Privy Councillor Johan  Sigismund Schulin on the Furesö Lake called "Frederiksdal Pavilion".

At shore of Lake Furesö are forest, beaches and regatta areas.