There are lifeboat and lifeboat drills. What is a full lifeboat drill? Well you certainty do not get a full lifeboat drill today when departing on a cruse ship. A muster station drill yes. As for full lifeboat drill is every body getting into one and been lowered! That just too impractical and consuming in time. Yes the crew members do exercises on the lifeboats when the ship is off shore anchored. Which is a very good idea and making sure the lifeboats are in full working order. No space left!