Complex sentence: With two roller coasters, and plenty of rides, most of the them have been moved to other parks; however, the two coasters, Screechin' Eagle, and Little Dipper, are still there.
Split into simpler sentences: With two roller coasters, and plenty of rides, most of the them have been moved to other parks. However, the two coasters, Screechin' Eagle, and Little Dipper, are still there.