Below the surface of Lake Oostvoornse Meer is not a "dive site," but an archive. Long before it became a recreational lake, this stretch of water was a treacherous passage toward the open sea. On the old sandbanks - the infamous Maas dries - ships ran aground, broke open or simply disappeared from sight. What remained is still there; today you dive there among remnants of galleons, sloops and even a British steam sailing ship from 1868. Some wrecks date back to the 17th century - silent witnesses to trade, war and whaling.And the remarkable thing? Much of that history is just within reach from the shore. No boat needed - just a plan ... or a scooter