At first I was confused as to the ability to water ski if the lake was dry. Especially given the rainfall they saw this week. Then I overcame my meteorological brain and realized what you were talking about.
There are a TON of breweries in the Indy area. My favorites are from Bier, but they don't package. Books and Brews puts together some good stuff as well, and can be found in liquor stores on the north side. Sun King is always the easiest to find and ok (I'm personally not a fan of the 3 main beers they distribute. The others are better). New Albanian is from southern IN, but also does some good stuff and is available in Indy.
Taxman, Thr3e Wise Men, Scarlet Lane are also good choices.