My wife and I are visiting with a 6 years old and 3 year old twins on XMas day. Planing to use one regular and one twin stroller. Is it easy to do the Riverwalk with strollers and Are the strollers allowed on the river boat?

It's very crowded this time of year. It will be hard to maneuver strollers. A twin stroller probably wouldn't fit too well as the walkway is rather narrow in some places. I'm not sure about the boats. I've never seen a stroller on them. Here's the Riverwalk website. Maybe you can find out more info here... https://www.thesanantonioriverwalk.com/

Also along the riverwalk is narrow at some places so it can get pretty crowded. I don't think a twin stroller would fit

I would say no room for strollers on riverboat if full. Leave them on shore. Or boat was full and we were knee to knee at night.