Welcome Corporate, Commercial, and Family Visitors! You'll love our newly built hotel in historic Port Isabel Texas, only 4 miles from the beautiful beaches of South Padre Island. Casa Rosa Inn is a business friendly motel located in Port Isabel, close to Port Isabel Historical Museum, Port Isabel Lighthouse, and Dolphin and Nature Research Center. Other area points of interest include Schlitterbahn Beach Waterpark. Property Features. Recreational amenities include an outdoor pool and a spa tub. Complimentary wireless internet access is available in public areas. The motel serves a complimentary continental breakfast. Additional property amenities include coffee in the lobby. Guestrooms, 44 air conditioned guestrooms at Casa Rosa Inn feature ceiling fans and windows that open.