Yesterday I also epoxied the bottom of Jim's dinghy. Poundworld are selling epoxy resin adhesive. A pound for one of those twin syringe packs is a bargain, so I bought a couple. Yesterday I slathered the stuff on Jim's dinghy and it soaked into the resin-poor matting, making it watertight again.
A watertight dinghy re-enthused him and he came down to the boats today:
I also tried out my phone and did a 360 degree panorama. Had to chop it into 2:
It may well be unviewable without the ability to zoom in, but its just an experiment.