Me!
what makes the coastal plain region a popular tourist destination?

it has many theme parks.
it has many beaches.
it has many mountains.
it has many rivers.

I would go with the beaches option, although the coastal plain can stretch very far from the actual coast and include all of your stated features.

I would go with the beaches option, although the coastal plain can stretch very far from the actual coast and include all of your stated features.

they all focused on themes about the inevitability of death.