Hello. My name's Mark and I live in the Cape Cod area of Massachusetts. I've always enjoyed snorkeling, but I'm also looking forward to start freediving and spearfishing. So far I've heard a lot about the importance of attending a course before beginning, but I haven't been able to find out about any in my area. I'd appreciate it if anyone could point me in the right direction in here. I'd like to find a beginner's freediving course, or something of the sort, anywhere in the Boston/Cape Cod/Rhode Island area. Thanks.