Was it Skink that made the Captain get his foot caught in a giant clam… i think it was. But he was banged to rights when he sub got caught in a typhooon and hit the cliff
It absolutely was Skink – it wasn’t the abovementioned Undersea Adventure, that’s the one where they lived in an undersea town off the cost of Cairns, Skink’s misdeeds were somewhere in the Pacific Islands, I’m sure. I knew the author and the series from the title of this thread – I read the crap out of the first 14 when I was a kid, still have Southsea Adventure (with their Pacific Islander mate Omo – snigger) on a shelf upstairs, the others sadly lost in the mists of time.