The harbours in Harlingen have varied depths.
Harbour depths
| length | Height
quay/jetty | Depth | Shipping lane | |
|---|---|---|---|---|
| + NAP | - NAP | - NAP | ||
| Industriekade (industrial quay) pole 1-8 | 140 | 3,00 | 6,50 | 7,50 |
| Industriekade (industrial quay) pole 8-38 | 600 | 3,00 | 7,50 | 7,50 |
| Korte Lijnbaankade | 450 | 3,20 | 8,50 | 8,50 |
| Visserskade (fishery quay) | 260 | 3,00 | 6,00 | 6,00 |
| Dok oost (Eastern dock) | 185 | 3,75 | 4,90 | |
| Dok west (Western dock) | 170 | 3,00 | 4,90 | |
| Airport | 165 | 2,50 | 4,50 | |
| Fishing port concrete jetty | 240 | 3,00 | 5,20 | |
| Vissershaven (fishing harbour) wooden jetty | 400 | 2,50 | 5,20 | |
| NW Willemshaven charterkade (charter quay) | 200 | 3,00 | 6,00 | |
| Tsjerk Hiddessluizen | 4,50 | |||
| Tsjerk Hiddesdrempel | 4,40 | |||
| Voorhaven (outer harbour) | 7,50 | |||
| Hermeskade | 280 | +/- 0,80 | 3,75 | |
| NW Willemshaven | 365 | 3,50 | 6,00 | 6,20 |
| NW Willemshaven at the back | 5,60 | |||
| Plankenpad | 130 | 2,00 | 4,50 | |
| Wilbrinkkade | 210 | 4,00 | 7,50 | |
| Zuiderpiersteiger (southern pier jetty) | 500 | 3,00 | 2,50 to 5,60 | |
| Wachtpalen Noorderpier (waiting stations, northern pier) | 210 | 4,00 | 7,50 |