See options for Stand Up Paddleboard rental here:

Aalborg Sailing Club

Hasseris Chalk Tomb (Nordic Chalk Tomb)

Eastern Harbor

Øster Hurup

Blokhus Strand

Lindenborg Å

Lindholm Å

Ryå

Another place

See options for sea kayaking, double kayaking and sit on top kayak rentals here:

Aalborg Sailing Club

Hasseris Chalk Tomb (Nordic Chalk Tomb)

Eastern Harbor

Øster Hurup

Blokhus Strand

Lindenborg Å

Lindholm Å

Ryå

Another place

See opportunities for mountain bike rental here:

Gateway (Blokhus)

Hammer Bakker (Vodskov)

Kongshøj Skoven (Aalborg)

Lundby Krat (Aalborg)

Rold Skov (Rebildvej close to Vælderskoven)

Rold Skov (at Skørping Idrætscenter) 

Hvorup (north of Aalborg)

See options for citybike and electric citybike rental here:

Østre Havn (Aalborg)

Blockhouse

Aalborg Sailing Club 

Hobro (Hotel America)

Skørping (at Skørping Idrætscenter)

Another place