Perhaps controversially, I quite like many of Chessington’s recent ride names. I think Croc Drop, even though I’ll digress to having personally preferred the original name of Sobek, is quite fun and rolls off the tongue nicely, and I also quite like Bobbing Barrels and Trawler Trouble; some nice alliteration there! I also personally quite like Blue Barnacle as well!
OK, I’ll admit that I think River Rafts is one I wouldn’t personally have gone for for that ride type (River Rafts sounds more “rapids ride” than “log flume” to me), and it’s not the most original, but I can see where they’re coming from.
Ultimately, I think the park appeals to young children as opposed to adult theme park enthusiasts, so anything too complex naming-wise would likely go over the target demographic’s heads a bit. When appealing to young children, I think you probably want something quite fun, simple, and with some sort of wordplay or device (from SOAPAIMS or GRIPPERS3PS, probably more the former), such as alliteration or rhyming. So in that regard, I think Chessington does that pretty well, personally!