Kind of a wtf ending!
I get that they were happy they lived and killed all the dino sharks, but dozens of people just died on that beach only minutes before, and yet they are there smiling and having celebratory drinks in the carnage?
The sands were definitely still wet with blood and guts and in all likelihood there would have been dozens more with gruesome injuries. Maybe take your party elsewhere and make room so disaster relief and clean the horror show that's left.