Things to Do on Mersea Island: A Local Guide from Colchester

Mersea Island things to do range from oysters to a full coastal walk, and the island lies about thirty minutes from Colchester by car, accessed via The Strood, a tidal causeway that floods at high tide and becomes impassable for a couple of hours either side of the peak. Most visitors treat this as an inconvenience. Locals tend to treat it as a useful filter. The island divides into two distinct parts: West Mersea, where the harbour, the seafood, and most of the activity are concentrated, and East Mersea, quieter and more agricultural, with Cudmore Grove Country Park at the far eastern tip.

If you are staying at one of the Clever Cottages properties in Colchester, a day on Mersea Island is entirely achievable without needing to plan too far ahead, provided you check the tide table before you leave. This guide runs through the Mersea Island things to do that are worth building a day around, in the rough order you would meet them coming off The Strood.

Contents

• Getting There: The Strood and the Tides
• Oysters, Seafood, and the Vineyard
• Cudmore Grove Country Park and the Coastal Path
• On the Water
• Mersea Museum
• Exploring by Bike
• Where to Stay

Getting There: The Strood and the Tides

The Strood causeway is the only road on and off the island, and it is worth understanding before you go. At very high tides, the road floods and is impassable for a period, typically around two hours on either side of the high-water mark. This does not mean you will be stranded unexpectedly: the flooding is entirely predictable and tide tables are published by local authorities and on tide prediction websites. What it does mean is that arriving on a midsummer Saturday afternoon without checking is the kind of optimism that tends to result in sitting in a queue on the mainland for an hour.

From Colchester, the drive follows the B1025 through Abberton, and it is worth noting that the reservoir you pass on the way has something to offer in its own right, which we will come back to.

Oysters, Seafood, and the Vineyard

West Mersea has been producing oysters for centuries, and the native oyster is still what most people come for. The waterfront in West Mersea has seafood places that serve oysters, crab, and fresh fish in a straightforward, unpretentious way that suits the character of the island. The Company Shed, which supplies seafood for the guided tours at Mersea Island Vineyard, is among the names most associated with the island's oysters. Native oysters are at their best between September and April, though you will find them available on West Mersea's waterfront for most of the year.

At the centre of the island in East Mersea, Mersea Island Vineyard has been producing wine since 1997, covering around ten acres with five grape varieties and an annual production of approximately 20,000 bottles. Guided tours run through the vineyard and winery, finishing with a tasting accompanied by a platter of seafood or a ploughman's. The same site houses Mersea Island Brewery, which produces cask and bottled ales; the vineyard shop sells both without requiring a tour booking. The brewery's Easter Beer Festival, held at the vineyard each year, draws visitors from across Essex with over 35 locally brewed ales across the weekend.

If you have already read our guide to West Mersea oysters, you will have a good sense of the seafood end of the island, which is one of the more popular Mersea Island things to do on its own. The vineyard adds a different register entirely, quieter, more bucolic, and well worth a couple of hours if the weather is reasonable.

Cudmore Grove Country Park and the Coastal Path

At the eastern tip of Mersea Island, Cudmore Grove Country Park is the starting point for the coastal path and home to the island's most reliable sandy beach. The park is managed by Essex County Council, with a café on site and paid parking.

The beach faces south-east and is generally quieter than the West Mersea seafront, particularly mid-week. Behind it, the grassland gives way to a low cliff that has produced fossils of genuinely unusual age, with bones of monkey, bear, and bison found here dating back approximately 300,000 years. The Second World War pillboxes scattered across the headland and the remains of a Tudor blockhouse fort occupy the same coastal strip, giving Cudmore Grove a layered historical character that rewards a slow walk rather than a brisk one.

The circular coastal path begins here and runs 21.5 kilometres around the full circumference of the island, flat throughout, taking five to six hours at a comfortable walking pace. For a shorter option, heading west from Cudmore Grove towards West Mersea covers the most varied terrain in roughly ninety minutes, with marshland and estuary views opening up after the first twenty minutes or so. We have a longer guide to walking Mersea Island if you want more detail on the route and what to expect at different points.

All four Clever Cottages properties are dog-friendly, which is worth mentioning here: the beach and coastal path at Cudmore Grove welcome dogs, making this one of the easier Mersea Island things to do to plan around a dog. The Round House and Number 11 in Colchester are the closest bases, both around 30 minutes from The Strood by car.

More Mersea Island Things to Do: On the Water

Mersea Island Watersports operates year-round from West Mersea, offering lessons and equipment hire for stand-up paddleboarding, kayaking, windsurfing, wind-foiling, and sailing. Conditions on the Blackwater Estuary suit beginners and experienced sailors alike, and the year-round operation means this is not strictly a summer option.

For something less involving, the Lady Grace runs 20-minute harbour trips from West Mersea seven days a week throughout the year, giving you a perspective on the island and the estuary from the water that is difficult to replicate from the shore.

Crabbing is possible at specific sections of The Strood causeway itself. A line, a bucket, and some bait are all the equipment required, and it tends to hold children's attention considerably longer than most alternatives on offer.

Mersea Museum

In West Mersea, the Mersea Museum has been run by local volunteers since 1976. The collection covers the island's fishing and boat-building trades, its maritime history, and aspects of natural history that are specific to Mersea's tidal geography. It is modest in scale and quite deliberately so. The detail it contains on oyster dredging, the island's smuggling history, and its Second World War defences is not the sort of thing you find in larger county institutions, and that specificity is the point.

The museum opens from 1 May to 29 September. Opening hours are 2pm to 5pm on most days, with extended hours of 10am to 5pm on Saturdays in July and August. Adults pay £2; children enter free.

On Saturdays between early June and early September, the museum runs guided history walks starting at 2:30pm from the Museum and returning there. There are no walks on Cobmarsh Day (1 August) or Mersea Regatta Day (15 August), when the island has other priorities.

Exploring by Bike

Mersea E-Bikes offers electric bike hire with a 72-kilometre range per charge, which is enough to cover the island several times over. The roads on Mersea are relatively quiet, the terrain is flat, and cycling gives you more ground than walking allows without committing to the full five- or six-hour coastal circuit on foot. A loop taking in East Mersea and the vineyard before returning to West Mersea for lunch covers the island's main points in two to three hours, and you can always leave the bike at the vineyard while you do the tour.

A Worthwhile Detour: Abberton Reservoir

Abberton Reservoir sits just off the B1025 between Colchester and Mersea Island, in the village of Layer-de-la-Haye. It holds international importance for wildfowl, with up to 40,000 ducks, swans, and geese using the reservoir at peak times in autumn and winter. Essex Wildlife Trust manages a visitor centre on site, with a hide, a café, and a nature trail.

It is not on Mersea Island itself, but it makes a natural addition to the day for anyone with an interest in birds, or for anyone who wants a different kind of quiet after the seafront. Stopping on the way out or the way back adds relatively little to the drive.

Where to Stay

For a Mersea Island day trip, Number 11 and The Round House in Colchester are the natural base. Both are two-bedroom Victorian terraces in the town centre area, around 30 minutes from The Strood by car, with free parking outside and self-check-in from 3pm. Both properties are fully stocked on arrival: teas, coffees, milk, and a few things for the first morning, so there is no need to shop before heading out.

If the Wivenhoe properties suit you better, Secret Cottage and Queens Cottage are in Wivenhoe, a little further from Mersea by road but with the River Colne and Wivenhoe itself on the doorstep, which is its own reason to base yourself there. A guide to what a day on Mersea from Wivenhoe might look like covers that combination.

All four properties are genuinely dog-friendly, with house rules in place. Please note that the stairs in all Clever Cottages properties are steep, which may not suit guests with mobility concerns or young children.

You can book any of the four properties directly through clevercottages.co.uk, which avoids the platform fees that come with booking via Airbnb or Booking.com, and means Kate is your direct contact from the moment you confirm your Mersea Island things to do itinerary.

Frequently Asked Questions