Some Like It Dry

Some Like It Dry is a mod that simply aims to reduce the amount of water in the overworld. Default configurations:

• ocean biomes are reduced by 60%
• lakes are reduced by 60%
• water blocks in caves are reduced by 60%
• rivers generate normally

Oceans are removed early in the biome selection process, allowing for normal biome selection to occur as if the ocean had never existed. 

Ocean Removal 

Before:

After:

Lake and River Removal

Before:

After:

Even more after (using custom world type to lower sea level to remove last few lakes):