The New Trend In Vacations: Wellness Tours Photo credit: CC license by Charles Willgren 5. Hot Springs State Park, Thermopolis, WY. This resort town in northern Wyoming just happens to be the site of the world’s largest mineral hot springs. Good for visits year-round, you can enjoy a soak in natural hot tubs, or take advantage of the amazing hiking or fishing. Prev5 of 18Next From Around The Web Facebook Comments comments