Idiots guide

Is onshore wind, wind thats blowing out to sea from the Land? and viceversa for offshore
High tide and low tide, what difference does it make?
Thermal rashvests that have neoprene in them, do you fire them in the washing machine or rinse them with water after a days soifin?

High tide and low tide, what difference does it make?
Thermal rashvests that have neoprene in them, do you fire them in the washing machine or rinse them with water after a days soifin?
