If you go to porn sites like xhamster xvideo pornhub and some others, and type "topless beach" or "voyuer" or what have you, quite a few videos appear that do not seem to have belong to any company as such. They're either private amateur videos or someone has conveniently been able to remove the watermark and pass them off as their own. These videos come and go by, so what I am saying is that there is always new beach videos to capture. You can then go sites such as
http://www.tubeoffline.com/ and convert them as a format you can download if those sites dont offer the download option.
Furthermore I am curious as to see what the main photogrsaphers who worked exclusively for iltb will do, now that the master site no longer exists. I don't know how many there were, maybe 10, and they are probably not going to change their line of work all of them, so it will be interesting to see if new work from them doesn't appear at some point, or if a new iltb-like project doesn't get started.