Not as far as I know. There isn't too much water around there, except for the very small Oakwood Lake.
Manteca is not a particularly nice town. What time will you be leaving Yosemite? Assuming you are leaving by mid-afternoon, you should consider driving to the East Bay (anywhere from Oakland to Livermore) or all the way to San Francisco. The drive from Yosemite to San Francisco takes about 4 hours.
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