The Principal Riverwalk is a riverwalk park district being constructed along the banks of the Des Moines River in the downtown. Primarily funded by the Principal Financial Group, the Riverwalk is a multi-year jointly funded project also funded by the city and state. Upon completion, it will feature a recreational trail connecting the east and west sides of downtown via two pedestrian bridges. A landscaped promenade along the street level is planned. The Riverwalk includes the downtown Brenton Skating Plaza, open from November through March.