It is recommended to rent a car to fully explore Hilton Head Island. A car rental can range from $40 to $150 per day, depending on your preferences. Taxi and ride-sharing services are also available, but may be more costly.
If you have more time, consider visiting the Sandbox Children's Museum or taking a kayak tour with Hilton Head Outfitter. If you have less time, you could skip the bike tour or the Coastal Discovery Museum, but the island's natural beauty and culture are not to be missed.