Several festivities, sailing contests, boat trips, swimming contests on the occasion of the 100 years existence of the Groot Noordhollands Kanaal (Great North-Holland Canal). Total pan from the boat along the harbour of Alkmaar, on the left side the Accijnstoren (Accijns tower), 14". Sailing shot through the NH canal, some round-trip boats sail with the camera, with binoculars mask, 10". Sveral overall and medium shots of a sailing contest with boats from the U-class, probably at the Alkmaar Lake, 2'19"+ 1'15". Swimming contests of skill in the small harbour (?), dressed up children swim through a barrel an over a beam, spectators look on, 25"+ 37". Sailing shot along the round bottom boats, blazers (type of boat), North Sea smacks, along the banks, the boats come from Den Helder, , HD 39, HD 14, 6". Sailing shot along round-trip boat "Drente", full of waving people and along moored Navy ship, probably in the harbour of Den Helder, 19". Medium shot two Naval Officers, 10". Close up Minister G.J. van Swaaywith wife, MInister of Transport, Public Works and Water Management in the second cabinet Ruys de Beerenbrouck, 1922-1925, 7". Close up Vice Admiral Fock, drinking coffee, aboard a large sailing ship in the canal 7"+ 12". Sailing shot through the harbour of Alkmaar, several decorated and round-tripboats, 20". Several sailing shots of decorated boats in the canal, 30". Several shots of taxiing double-decked water plane, the Fokker C.VIIw, of the Netherlands Naval Aviation Service, on Alkmaar Lake (?), 30".Flying shots over the canal and surrounding area, 55".Landing in the field of the Fokker F VII, HNACC, with close up of the crew, 40".  A.N.J. Thomassen à Thuessink van der Hoop, H. van Weerden Poelman, P.A.W. van den Broeke. Note: the item has been edited and possibly isn't complete anymore; not all scenes are in the right order.