I don't particularly believe in protective filters except in crowds and in places like the beach, where sand and salt sea spray are hazards.
Other than that, I supposed I've used everything from a Yashica T4 to an 8x10" camera at the beach. I don't really see it as a special situation per se. I'm more likely to be thinking about what kinds of subjects I'm planning to photograph. For this shot I used a Canon F-1N and a 600mm/4.5 lens, but that wouldn't be a good choice for landscapes, street style candids, or family snapshots.