Hot tub IS like a jacuzzi ... the terms seem to be interchangeable.  I wouldn't drink the water, though!  It's got chlorine in it, just like a swimming pool would.  The water is about 102F, and you can have the water jets on (which makes it a jacuzzi) or off (which makes it a hot tub.)

 

No food involved!  :P

 

Very relaxing for sore muscles.  :)

"If your pictures aren't good enough, you're not close enough."  ...  Robert Capa