Don’t let yesterday’s pretty picture fool you. The sad truth is that there is much more to the Salton Sea than spectacular birdwatching. Its shores are, in fact, littered with dead fish. Massive fish die-offs are an annual occurrence there due to an oxygen-depleting combination of salt and heat (summer temps can reach as high as 120 degrees) that basically causes the fish to suffocate. As many as 7.6 million Salton Sea fish have been known to expire in a single day.