There are loads of new cameras out there, DSLR and the new mirrorless cameras. I use both types, but for most of my photos along the coast and surf I use a camera thats weatherproof. DSLRS that are weather sealed or mirrorless ones can be found, and just depends on your budget. And if you get a weathersealed body, match it to a weather sealed lens and then you are set. e.g Pentax DSLRs, Olympus OMD, Fuji XT1, and Im sure Canon/Nikon have some as well. Worth getting one thats weather sealed as you never know when you will get soaked and salt water isnt the best for camera longevity.
Lens wise - wide angles can give distortion up close on people, so a zoom that is moderately wide to normal wide will help .