Travelers arriving directly from an international destination must obtain the correct visa before arrival in the US. Most foreign nationals are required to have some form of pre-arranged travel visa, so check with your local US embassy to find out what is required. The American government’s website is useful for preliminary information http://travel.state.gov/visa/.
Health and Safety
In general, there are few health concerns in Delaware. Lyme disease surfaces occasionally from deer ticks that live in the woods deep in the country. When hiking in the forested regions, be sure and wear long pants and a hat or use some form of insect repellant to keep the ticks off. Along the beaches, visitors should be aware of sun exposure, even when the air and water temperatures seem mild. Swimming is generally safe along the Delaware coast, but heed any warning signs posted on the sand that relate to rip tides or other dangerous currents.
Travelers in Delaware will have little crime to worry about, as this is one of the safest states in the country. Petty theft is common anywhere in America, and this is more of an issue in the main tourist destinations like Rehoboth Beach, Dewey Beach, or Wilmington. While violent crime is rare, car break-ins and other theft can happen at any time, in any town. Don’t leave any valuables in your car when visiting the beach or exploring.