we went out with a small ship to have a bbq on the water . the russians did some fishing and got a lot of nice fish . then some of them went swimming - well , they jumped into the water , stayed there for a moment and then went out again . we wanted to do the same , and so Anica , Maude , Elias and i also took a bath in the very cold sea .

Based on the preceding passage, answer the following question Why did the speaker and their friends choose to try swimming in the freezing water ?
They were enjoying the visit and wanted to emulate the local customs to see what they were all about