Swimming. Is swimming allowed in the river? Swimming in the Rio Grande is NOT recommended, as undercurrents, deep holes, sharp objects, micro-organisms, and other hazards exist. Three hours north of the park is Balmorhea State Park, which offers excellent swimming opportunities in the world's largest spring-fed swimming pool! Peak Visitation Periods.
[{"major_rivers": "Rio Grande", "swimming_allowed": "no", "size": "n/a"}]
[{"major_rivers": "Rio Grande", "swimming_allowed": "no", "size": "n/a"}] [{"major_rivers": " Rio Grande", "swimming_allowed": "yes", "size": "n/a"}]