Places to sit/walk around at night in Portsmouth

Me & my husband live in Portsmouth, and have been trying to find some cool little spots to just go and sit in the evening/night and enjoy the weather, preferably spots on the water but any where that is a nice chill spot would be cool. All the parks close at dusk, and we have done port Norfolk down at the water which is cool but just looking for something new if anyone has any suggestions it would be soon appreciated!!