Simplify the following text for a Grade 3 native English-speaking person.
Original: The track is 5.073 km ( 3.15 miles ) long in a harbourside location similar in style to the Monaco Grand Prix and the new circuit in Valencia .
Simplified: The track is 5.073 km ( 3.15 miles ) long . It is located next to the harbor , similar in style to the Monaco Grand Prix .