Swimming conditions at Sebastian Inlet vary significantly by location. The inlet itself has strong currents, rip tides, and boat traffic, making it dangerous for swimming. However, the beaches on either side of the inlet offer safer swimming areas, particularly the north side near the jetty when conditions are calm. Always check posted flags and warnings before entering the water. The beach is extremely popular with surfers due to consistent waves, so be aware of surfboard traffic. Lifeguards are not always present, so swim cautiously and never alone.

Sebastian Inlet is a year-round destination with consistent conditions. For surfing, fall through spring (September to April) typically brings the best waves, with hurricane season (August-October) producing larger swells. Summer offers calmer seas ideal for families and swimming. Winter months provide cooler temperatures and fewer crowds, though water is chillier. Early morning visits offer the best lighting for photography and wildlife viewing, while sunsets are spectacular year-round. Weekdays are generally less crowded than weekends, especially during summer and spring break.

Sebastian Inlet State Park is located on State Road A1A, approximately 15 miles south of Melbourne Beach and 10 miles north of Vero Beach. The park has multiple parking areas on both the north and south sides of the inlet. There is an entrance fee of $8 per vehicle (prices subject to change). Parking fills quickly on weekends and holidays, especially near the popular surfing spots by the jetties. Arriving early morning is recommended for securing a spot. The park is easily accessible by car, with clear signage from A1A.

The park has a small concession stand offering basic snacks, drinks, and light meals, though hours vary seasonally. The marina-side restaurant provides more substantial dining options with waterfront views. Facilities include restrooms, outdoor showers, picnic areas, and a camp store. For more extensive dining and lodging, nearby communities like Melbourne Beach, Vero Beach, and Sebastian offer numerous restaurants, hotels, and vacation rentals within a 10-20 minute drive. Many visitors bring coolers and picnic supplies for all-day beach visits.

Sebastian Inlet's unique geography creates exceptional surfing conditions rarely found in Florida. The inlet's jetties and sandbars generate consistent, well-formed waves year-round, making it one of the most reliable surf breaks on the East Coast. The area produces both left and right breaks suitable for various skill levels. First Peak near the north jetty is particularly famous among experienced surfers. The inlet has hosted numerous surfing competitions and produced several professional surfers. Even when other Florida beaches are flat, Sebastian Inlet often has rideable waves.