Simplify the following text for a Grade 5 native English-speaking person.
Original: A large percentage of KÃ penick 's area is covered with forests and water , most notably the MÃ 1\/4 ggelsee lake .
Simplified: A lot of KÃ penick 's area is covered with forests and water , such as the MÃ 1\/4 ggelsee lake .