Shared by DepthScout anglers. Exact spots stay private, always.
1,598-acre river near Hoek van Holland. The water tops out around 107 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What the data behind the map says about each species, season by season:
The outline encloses 1,596 acres, worked by 9.4 miles of shoreline. A middling shoreline index (1.7) gives it some bays to work without being a maze. Roughly 68% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 3.7 mi, about 2.2 mi across. If the bite dies, Haringvliet Offshore is 2 mi to the east.
Vis- en dieptekaart van Maasmonding Offshore, Nederland: gemeten dieptelijnen (Rijkswaterstaat) tot 33 m, met visstekken voor haring, bot, geep. De dieptelijnen zijn berekend uit gemeten bodemhoogten van Rijkswaterstaat en het officiële lokale streefpeil (NAP). Gebruik de kaart als visgids, nooit voor navigatie.
When the water first warms, atlantic herring slide up into 5 to 25 ft. By summer they slide out to 15 to 50 ft, and by winter most fish are in 20 to 60 ft. If you only fish one area, make it Measured shallow feeding flat: a feeding flat around 7 ft that scores good in spring. In summer the feeding windows fall in early morning and the evening. Keep a herring feather rig or a small silver jig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Measured shallow feeding flat (7 ft) | Small herring feather rig, Micro jig rig |
| Summer | 15 to 50 ft | dawn & dusk | open water | Herring feather rig, Small silver jig |
| Fall | 10 to 40 ft | dawn & dusk | open water | Small feather rig, Compact silver spoon |
| Winter | 20 to 60 ft | midday | open water | Small silver jig, Sparse feather rig |
The spring pattern is a shallow one: european flounder in 5 to 25 ft. As the season builds they drop to 6 to 35 ft, wintering in 15 to 50 ft. Top water on the chart: Measured shallow feeding flat, a feeding flat in the 7 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a bottom jig with spinner blade gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dusk | Measured shallow feeding flat (7 ft) | Small bucktail dragged on bottom |
| Summer | 6 to 35 ft | dawn & dusk | Measured shallow feeding flat (7 ft) | Bottom jig with spinner blade |
| Fall | 8 to 40 ft | dusk | Measured shallow feeding flat (29 ft) | Compact bottom jig |
| Winter | 15 to 50 ft | midday | Measured shallow feeding flat (29 ft) | Small bottom jig |
When the water first warms, garfish slide up into 1 to 15 ft. Summer is a 2 to 20 ft game here, winter a 20 to 60 ft one. The feeding windows run early morning and the evening. Keep a slim casting spoon or a surface-skipping fly rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & midday | open water | Slim silver spoon, Small inline spinner |
| Summer | 2 to 20 ft | dawn & dusk | open water | Slim casting spoon, Surface-skipping fly |
| Fall | 8 to 30 ft | dawn & dusk | open water | Weighted slim spoon, Small silver jig |
| Winter | 20 to 60 ft | midday | open water |
Structure-wise the chart holds 2 features, led in depth by Measured shallow feeding flat at roughly 29 ft.
Season dates, license requirements, and size and bag limits for Netherlands waters are set by the Sportvisserij Nederland (zeevissen — sea angling rules) — and special regulations can apply to Maasmonding Offshore specifically, so confirm the current rules before you fish.
Check the official Netherlands fishing regulations →
Maasmonding Offshore is about 107 ft (33 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target atlantic herring, european flounder, garfish on Maasmonding Offshore. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Measured shallow feeding flat is the top-rated area: a feeding flat in about 7 ft of water that rates prime for european flounder in spring. The interactive chart above rates every spot for each species and season.
For atlantic herring, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Maasmonding Offshore is regulated by the Sportvisserij Nederland (zeevissen — sea angling rules). Check the official Netherlands regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Haringvliet Offshore 2 mi · Maasvlakte Coast 4 mi · Voorne Coast 9 mi · Nieuwe Waterweg 9 mi · Delfland Coast 13 mi · Goeree Coast 14 mi · Haringvliet-west 16 mi · Grevelingenmeer 21 mi · Nieuwe Maas 22 mi · Schouwen Coast 22 mi · South Holland Stable Coast 24 mi · Haringvliet-oost 27 mi
See how Maasmonding Offshore stacks up: best atlantic herring lakes in Netherlands · best european flounder lakes in Netherlands · best garfish lakes in Netherlands
Browse all Netherlands fishing maps or see every water on DepthScout. Bathymetry credit: Rijkswaterstaat coastal and vaklodingen surveys, CC0. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.