In the summer buy some cold beers or drinks in the nearby Lidl store and drink them on the wooden deck of Sandkaj, jump in the water when you get too warm in the sun.
Brumleby is a small quarter nestled in a triangle between Trianglen square and the National Stadium. It was built in the 1850s by the Danish Medical Association, as answer to a recent cholera epidemic, as a showcase on how to make healthy but affordable housing for the working class. It has been awarded Europa Nostra award for conservation, and it is a nice place for a brief stroll if you are in the area.
Small museum in the old cooperative shop and library. It is run by volunteers living in Brumleby and they are happy to tell you everything about the museum and Brumleby.
St. Alban's - The English Church
King Christian IX's daughter Alexandra, who was became the Queen of England was the driving force behind the erecting of this church, which is home to the English congregation in Denmark. The church was completed in 1887, and was built with some impressive flint stone walls.
Frederikshavn Citadel
A superbly preserved and restored star-shaped citadel. First built in 1626 as St. Anne's Bulwark and completed in 1664, it was the stronghold at the northern end of the East Rampart, which arched through the city and remains in the form of the many parks extending down to Tivoli. The Citadel now houses the Danish Defense Intelligence Service, and is a popular spot for picnics. As well as two small museums with limited opening hours: Livjæger Museum and the museum in the North Gate which displays Garrison's Historical Collections .
The Little Mermaid Statue
This little lady is one of the most photographed in the world. Designed by Edvard Eriksen, Her statue was erected in 1913 to commemorate a play of the Little mermaid. The poor lady has lost her head several times, and is often subject to vandalism connected with political statements. Many visitors are often surprised by her modest size (1.25 m (3.3 ft) high). The Little Mermaid is a semi official symbol of Copenhagen.
& Nyboder district
This mini-district was built in the 17th century, and consists of long rows of beautiful 2 story yellow brick buildings. It was built to house sailors from the Navy, as it was useful to have sailors in the fleet living in a confined space, so they could quickly be called to duty. Today the houses are still owned and managed by the Danish Defence, although servicemen from all three branches are allowed to rent a flat. All streets except for two are named after animals. On Sankt Pauls Gade 24, Nyboder mindestuer showcases everyday life in the neighborhood from its inception in 1631, every Sunday 11:00-14:00.