Psychocabbage:
Here's some good things about Lake 288.
I have dove Lake 288 almost every weekend since mid March. The visibility is better than Mammoth Lake or Twin Lakes. Its almost as good as Blue Lagoon.
The environment is safe, the staff is friendly. There is also a nice beach area with sand. There are many picnic tables for gear. Unlike Blue Lagoon, there is an abundance of waterlife from foot long catfish and perchana to half inch somethings in schools by the hundreds.
The only things that they are missing are a compressor and a snack shop.
Of course, its not the caribbean, but it will do in the meantime.