Many cruise-ship lifeboats are outfitted as tenders. Have lost
count the many times I've rode
them in the harbor between ship and dock
. They have two engines (presumably to provide increased maneuverability) while the plain-vanilla lifeboats have only one. I believe this picture was taken in Juneau. Other cruise
ships fully occupied the docks, so we had to anchor
out and use tenders. And then there are ports
with no suitable docks.
The tenders normally use a crew of two: helmsman and line handler. Passengers aren't allowed to help. "Hands/arms in, everybody."