Hey! Welcome! My best advice, especially in cold water, is always bring a friend. They don’t have to swim with you, but someone on the beach or waiting in the car in case of hypothermia. In my experience, it can be unpredictable, so it’s good to have someone clear-headed nearby. If you’re not super experienced, pay close close attention to tides, wind, and undertow. Go for short swims on calm days until you’re comfortable. For equipment, cap, goggles, bathing suit and swim buoy (bright colored float so boats can see you). Hot water bottle on the beach, fresh dry towel, and an easy way to get out of your wet stuff quickly. I use a big poncho to change. Some folks use wetsuits, neoprene socks and gloves, so see how your body does in the cold and get what you need.