This is a very nice linear park in the downtown historic district of Yuma. Facilities include a picnic area with grills, fishing pier, playground, beach and restrooms. Parking is free. We stayed at the Garden Inn adjacent to the park and were able to walk the paved trail along the river to the Colorado River State Historic Park and to restaurants on Main St. There is a restored vintage steam locomotive on display next to the hotel and also several small museums nearby in the downtown area such as Sanguinetti House and Yuma History Museum. Gateway Park connects to East and West Wetland Parks so it's possible to walk a couple of miles along the river. Wheelchair access is very good. The Territorial Prison Historic Park is just east of Gateway Park and within walking distance for some people, but the trail was uphill and not paved. We wanted to walk the whole distance of the river trail but it started raining so we had to cut it short. We enjoyed it and would like to return soon