We must be a bit resourceful over here. It is not because we don’t have tidal races over here along the Belgian coast that we cannot train on breaking in and out of one.  Somewhere in the back of Nieuwpoort harbor there is a complex with different locks called the Ganzepoot (goose foot, because it looks like one when seen from the air).  In the periods with heavy rain there is too much water in the five adjacent canals and in the river Yser.  The locks are then opened a few hours before low tide, until a few hours after.  The amount of water that comes like an unstoppable force trough the locks is phenomenal.  It also makes a perfect practicing area for us, sea kayakers.  The different canals and locks have their own characteristics.  We always start our training on the slower flowing water, and then build up until we go on the Yser lock.  The Yser lock releases the most amount of water, at the highest speed.  We train on breaking in, and back out, of fast moving water.  You need a good angle of approach, some speed and a good lean-brace position.