Advice on Diving in Belgium

.... Most Belgium dive sites are well equipped for independent divers and include bathroom facilities and filling stations, especially- often privately owned- quarries. Private dive sites ask for a small payment and for divers to abide by a set of safety rules. Other Belgian dive sites, like recreational areas require divers to buy a permit. Sites are easy to reach by rental cars. Belgium diving is mainly done independently. There are options for equipment rental and fill stations, however guided dives in Belgium are not organized frequently.  Diving in the North Sea is possible by charter boats...