I will be taking my 28' Magic to Park Moabi next weekend for the first time. I'm a little concearned about my boat wanting to pull my anchor up as the current picks up on the river. I have a big box anchor and sand spike. Will that hold it in place across the current? I guess I could just beach it, but than I would need to move it out as the water goes down. I'm just wondering what other guys do there that works.