Simplify the following text for a Grade 5 native English-speaking person.
Original: Cap-Ha Ã tien has , in general , also seen greater foreign tourist activity than much of Haiti , due to its isolation from political instability . Cap-Ha Ã tien is also unique for its French colonial architecture , which has been uniquely well preserved .
Simplified: Cap-Ha Ã tien is a very important port of northern Haiti ; there is also an airport .