Anchoring is the way to go
I've left my boat anchored many times, but it all depends on where you anchor it, the holding ground, the depth of the water, the amount of anchor line scope, the prevailing winds, and whether a current exists. If you think that the wind will change later on in the day, then you may want to add another anchor about 180 degrees aft, with the same amount of scope as the bow anchor. This aft line needs to be tied at the bow for when the boat turns in the other direction. A lot of boaters are leery about anchoring because they're always afraid that the anchor is going to slip on them during the night when they're asleep. If this should happen, you'll wake up instantly. Believe me, you'll know. When a boat slips the anchor,it drifts sideways and rocks with waves slapping the side of the hull. The important thing to remember when anchoring is to find a place with good holding ground that is pretty much protected from high winds and currents, and use enough anchor line scope to keep the anchor rode as horizontal as possible as the tide rises. A long chain attached to the anchor will keep the line horizontal, and keep that anchor dug in. If you anchor often and take a bearing on an object on shore, to make sure you're not slipping, anchoring becomes "old Hat" after a while. If your boat is out of the way of boating traffic in an anchorage, you can forego the anchor light, but that is up to the captain of the boat to decide. Happy anchoring!