Downtown hotel with a rooftop pool bar and grille next to the riverwalk wyndham san antonio riverwalk is in downtown san antonio a 15 minute walk from the alamo the historic former mission and battle site the hotel is also next to the citys riverwalk a series of walkways along the river lined with shops and restaurants kids and texas museums if you have kids theyll have a great time with the hands on exhibits at san antonio childrens museum an 8 minute walk from the hotel to discove