Hate the beach? I've been know to stay their for like 8 hours before (though it is usually only half that). My favorite thing to do is get hit by waves, and they can get pretty big where I go. While everyone tries to dive these 15 foot waves, I just stand around or sit down and wait to get pummeled and get pushed back a fair distance (have to say that rip tides aren't fun tho).
Example of me getting hit by said wave:

What's even more fun is body surfing at the very front of a big wave so you get hit by not only all of the waves power, but a shitload of sands (and occasionaly some seashells). You also start spinning if the wave is big enough, crazy shit.
Speaking of waves, their were two fucking crazy ones that I have experienced, by crazy, I mean you'd be lucky if you saw a wave like that again without being a professional surfer. The first time was around when I was six and a montrous wave (wouldn't be surprised if it was at least 40 feet high) came crashing down, it's crash point however wasn't very near the bank of the beach, however, the tide went so far back that umbrellas and people's belongs got swept up. Two days later I was able to find my little cousin's sand toy he lost in the wave. For two years it also supplied a little kiddie pool that stretched across the entire back of the beach, only a few feet high, and ideal for catching sand crabs.
Second time was about two years ago, when their was a crazy pouring rain in the city, waves were pretty monstrous. No one came to the beach because: 1. Rain = sun bathing = no chicks for guys to look at 2. The rain would drench your towel and belongings. 3. You could wind up with multiple broken bones. So me, 2 cousins, my sister, and my parents, decided what a perfect time to ride waves (no were not dumbasses, we just thought it would awesome to ride some daredevilish waves with no one else around). Of course, after we took a serious beating, the largest wave I have ever seen of my life pops up. Me and my family rush for our lives to get a ride on the wave (seriously, some waves aren't just worth rushing too. When it's a matter of your personal health, you think differently) not only was it crazy, but I coulda swore I was about 30 feet in the air. At the last minute, we dive through the wave and escape virtually unscathed. That is, except for my mother who received a broken hip. It was still cool, nonetheless.