Lakes Hoptacong and Musconectong is located near Landing, NJ and is rated as moderate. The trail is primarily used for walking, road biking, and canoeing and is accessible from April until October.
This is New Jersey's biggest lake, with lots to see. You can even manage to stop at some of the lakeside dining establishments and other businesses. The state put-in charges a nominal fee, but if you have a friend living on the lake, or put-in at the State Park in Landing, you can lauch for free. Be aware that this is a major recreation lake, capable of handling jet skis and some fairly sizable power boats and sailboats. Most kayakers know that they are speed bumps to these other craft, and Hopatcong doesn't always get the most responsible boaters! Close to shore and in other no-wake areas is good. Be careful crossing open water, and try to be as visible as possible!