The Peninsula Island Resort & Spa is a luxurious hotel located near the South Padre Island Birding and Nature Center Beach. Each room at this resort features a private bathtub, allowing guests to relax and unwind in style. The resort also offers stunning ocean views, a spa with a range of treatments, multiple pools, and on-site dining options. With its luxurious amenities and bathtub accommodations, the Peninsula Island Resort & Spa is the perfect choice for travelers seeking a high-end hotel with a bathtub in South Padre Island.