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The Maldon District has 75 miles of coastline to explore, plus two river estuaries, the Blackwater and the Crouch, so it’s not surprising that you have a good chance of seeing sea mammals on your visit.
The most common creature you are likely to see is the seal, as there are two well-established seal colonies near Burnham-on-Crouch, one in the mouth of the river on the Foulness sands, and the second in the River Roach which joins the Crouch at Foulness. The seal colonies here are common seals, the smaller of the British seal varieties, weighing up to 100kg.
What can be confusing is that the seals that live in the River Roach are remarkable for their almost red colouring – caused by iron deposits in the mud – making them look a little different from other common seals. Common seal pups are born from May to July and are capable of swimming within an hour of birth, and of suckling under water. At low tide they bask on the mudbanks – and this is the best time to see them. They are quite inquisitive and may well slide off the mud and swim over to get closer to your boat!
You might also spot the occasional grey seal; these are larger (up to 250kg) and have a much more pronounced nose that the common seal. Grey seal pups, more commonly seen in Norfolk, are born in late autumn and winter.
If you see a marine mammal with a distinctive fin you are most likely seeing a harbour porpoise, the smallest and most common cetacean (the collective name for all whales, dolphins and porpoises) in British waters. The harbour porpoise, pictured below, has a small, round head with no obvious forehead or beak and has a dark grey back with paler grey patch on its sides and a white belly. It has a low triangular dorsal fin in the centre of its back which you can see when it swims near the surface, although it doesn’t often jump right out of the water.
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You might also be lucky and see the common dolphin in the coast around the Maldon District – one has even been spotted coming right up the river by Promenade Park! You can identify the dolphin as it has a more curved fin that a porpoise and also has a distinctive beak.
To keep our marine wildlife safe, do not try to get too close in a boat or with a jet ski, and if you see a seal resting on the beach keep a good distance away and keep dogs on leads. If you see any marine mammal in distress, particularly if there’s a live porpoise or dolphin stranded on a beach, contact the British Divers Marine Life Rescue’s 24-hour hotline straight away. You can find all the details here.
Get closer to nature...
Number of results: 37
, currently showing 21 to 37.
Wallsea Island
Discovery Charters offers fishing and seal watching wildlife trips which leave from Essex Marina on Wallasea Island, from Burnham-on-Crouch and from Fambridge Yacht Harbour.
West Mersea
Estuary Rib Tours is a family run business that provides boat trips starting from Mersea Island to enjoy the Blackwater Estuary, often stopping for lunch in Bradwell-on-Sea. The tours are on our 8m Cobra Rib, ‘Hi Fizz’, which carries up to 8 guests…
Maldon
From May 2023. This traditional pleasure boat was built locally in 1947 and, following a complete restoration, is once again offering trips around the estuary. Moored at the ‘little blue jetty’, the Viking Saga is the best way to view both the Hythe…
Maldon
A "Two Island" cruise from Maldon Quay past Northey Island to Osea Island and back. Bring a picnic or order a Ploughmans or Smoked Fish Platter.
Bradwell-on-Sea
Get on the water with Essex Outdoors and experience a day out with a difference on board a high speed RIB powerboat on the River Blackwater Estuary. Whether you want to learn the ropes and try your hand at helming or simply sit back, relax and enjoy…
Burnham-on-Crouch
New for the 2023 season, Seal Trips Essex offers a variety of cruises aboard Celtic Prince, a refurbished boat carrying up to 10 passengers, with toilet facilities, ample indoor and outdoor seating with a canopy, and the option of snacks and drinks…
The Hythe, Maldon
Various dates. A Two Island Cruise on board a historic Thames Sailing Barge from Maldon Quay, past Northey Island to Osea Island and back.
The Hythe, Maldon
Sunday 14 July. Fully day sail on a traditional Thames Sailing Barge learning about the history of barges, Maldon as a port and the River Blackwater.
Heybridge
Welcome to Chigborough Fisheries, we are a 53 acre complex of lakes catering for both Trout and Coarse Anglers situated just 40 Miles from London.
Maldon
A "Two Island" cruise from Maldon Quay past Northey Island to Osea Island and back. Includes Afternoon Tea of freshly baked scone with cream and jam, homemade cake, tea or coffee.
The Hythe, Maldon
Various dates. A "Two Island" evening cruise on a historic Thames Sailing Barge from Maldon Quay past Northey Island to Osea Island and back.
The Hythe, Maldon
Various dates. Learn to sail a traditional Thames Sailing Barge; set the sails, take the wheel and discover how two people can manage the boat. Fully catered.
Maldon
Embark on a delightful Brunch Cruise with Topsail Charters, departing from Maldon Quay. This scenic river cruise along the River Blackwater promises a tranquil and memorable experience.
Maldon
Experience the pleasure and excitement of sailing on a historic Thames sailing barge.
The Thames Sailing Barge Trust, a registered charity which owns the sailing barges Pudge and Centaur.
To view and book our trips visit www.bargetrust…
Heybridge Basin
Spend a day at Heybridge Basin - you can have a picnic, view the boats and hop on a one hour boat trip on our canal boat Blackwater Dawn.
The Hythe, Maldon
Various dates. A Two Island Cruise on board a historic Thames Sailing Barge from Maldon Quay, past Northey Island, Mill Beach to Osea Island and back.
The Hythe, Maldon
Wednesday 27 to Friday 29 December & 13 January. A leisurely one and half hour cruise from Maldon Quay to Mill Beach and back. Add an optional warm baguette filled with slow roast pork and apple chutney.
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