Taylor yells for them to drop their gear and make a break for the surface. They swim as fast as they can to the surface near the boat. As they cling to a life ring to get to the boat, one of the sharks bites Lisa's leg and pulls her back down to the water. Lisa fights the shark by hitting it and gouging its eye out, which causes the shark to release her. Captain Taylor and the other men are able to pull Lisa and Kate onto the boat and begin administering first aid. However, as Lisa stares at her hand on the deck of the boat, it is revealed that she has been hallucinating for some time due to the excess nitrogen in her blood from the air tanks. Her leg is still trapped under the cage on the ocean floor as she laughs and imagines that she is talking to Kate on the boat deck. The coast guard comes to rescue her and carries Lisa to the surface without Kate. Lisa, as she is slowly and cautiously being brought to the surface, comes out of her hallucination, and also notices her sister is not with her. She starts to cry and call out to Kate, realising that Kate was killed.

in the movie 47 meters down does kate die?
yes