Purbeck Stone, Victorian Ballast and a Harbour Shore
- Rating: Fair Beach
- Terrain: Easy
- Level: Beginner
- Dog friendly: Seasonal (dogs banned from main beach 1 May–30 September; Monkey Beach and North Beach dog-friendly all year)
- Location: Swanage, Isle of Purbeck, Dorset
- Sat Nav: BH19 1LB (main beach) · BH19 2AP (Monkey Beach / Broad Road)
- Common colours: Green, brown, white
- Rare colours: Cobalt Blue, Black, Lavender, Red
Best For:
- Sea glass hunting
- Harbour finds
- Family visits
- Long beach walks
Why Swanage – where the stone ships went out, and the glass came back
Swanage is not a sea glass destination in the way that Charmouth or Portland are. The main beach is a classic Blue Flag family resort, with golden sand, deckchairs, a Victorian pier, and lifeguards in summer. The glass here is in ones and twos rather than handfuls, and the sandy foreshore of the main beach is not ideal hunting ground. You need to know which section to go to, and why.
The answer lies at the southern end of the bay. Monkey Beach, the small sand-and-shingle cove tucked between the Victorian pier and the old stone quay, is where the harbour’s history is concentrated. This is where the Purbeck stone trade operated for centuries, stone loaded onto boats at the quay, shipped to London, and on the return journey, the empty holds filled with ballast: London’s cast-off rubble, Victorian ironwork, architectural salvage, and all the ordinary breakage of two centuries of maritime trade.
George Burt, the Victorian entrepreneur who transformed Swanage from a quarrying village to a seaside resort, brought so many London landmarks back as ballast that the town accumulated a peculiar collection of salvaged stonework, including the Wellington Clock Tower, originally built on the south side of London Bridge. It now stands in a garden at The Grove in Swanage.
That history is the glass story here. Come expecting the volumes of Charmouth, and you will leave disappointed. Come knowing that Monkey Beach and the northern stretch of the bay are your best targets, and that the harbour trade gives this ordinary-looking foreshore a more interesting provenance than it first appears, and Swanage is a pleasant Fair beach with a genuine story behind it.
What you’ll find here
Colours commonly found: Green, brown, white
Occasional finds: Blue, Aqua, Amber, Turquoise
Rare finds: Cobalt Blue, Black, Lavender, Red
Bonus: The old stone quay itself is worth exploring at low water. The quay dates from the stone trade era, and the structure has its own character. The South West Coast Path south toward Durlston Country Park is one of the finest short coastal walks in Dorset.
When to go
October to April for Monkey Beach and the northern section, the dog ban on the main beach lifts, and the whole bay is yours. Low tide is the best state regardless of season: the shingle around Monkey Beach and the northern end of the bay is at its most productive when the tide has ebbed. A falling tide, working down from the strandline toward the waterline, is the right approach.
Post-storm visits are worth timing. Swanage Bay faces east across Swanage Bay with some exposure to Channel swell coming up from the south-east, and after rough weather, the strandline refreshes. The bay is relatively sheltered compared to the open Dorset coast, so don’t expect the dramatic glass turnover of Charmouth after a south-westerly storm, but a south-easterly blow does reach this side of Purbeck, and those are the visits worth making.
Today’s tide times & Sea Glass Score
Swanage Bay faces east-south-east on the southern tip of the Isle of Purbeck, sheltered from the prevailing south-westerly weather by the Purbeck Hills and St Alban’s Head. The tidal range is modest compared to the open Dorset coast, around 1.5–2 metres on a spring tide, which means the beach profile doesn’t change dramatically between tides.
The widget below uses Swanage tide data to show today’s Sea Glass Score and best hunting window. The modest tidal range means wave energy after a south-easterly storm matters as much as the tidal state – check both before you plan your visit.
Where to look on the beach
Monkey Beach – your primary target. The small sand and shingle cove at the southern end of the bay, between the Victorian pier and the old stone quay, is dog-friendly all year. Work the pebble ridges where shingle has built up against the quay and pier structure. Material concentrates against these hard structures and stays put between tides.
North Beach – the quieter northern end of the bay, less visited than the main central beach and dog-friendly all year. The beach here has slightly more shingle character than the sandy central section, which improves glass-trapping. Worth working the strandline along here, especially after rough weather.
Central main beach – predominantly sandy, high footfall, lifeguarded in summer. The sand is not conducive to glass concentration. Worth a quick strandline scan, but not the main hunting ground. Dog ban applies 1 May–30 September.
Key Tip:
Skip the central beach and head straight to Monkey Beach. The shingle trapped against the pier and old quay creates natural collection points where glass is far more likely to accumulate than on the open sandy sections of the bay.
Difficulty Level – Beginner
- Easy access throughout the bay
- Productive hunting zones are easy to identify
- No scrambling or difficult terrain required
- Multiple dog-friendly sections can be searched year-round
- Suitable for first-time sea glass hunters and families
Hunting Style – The Harbour Forager
Swanage rewards hunters who focus on structure rather than distance. Search the shingle ridges around Monkey Beach first, then work north along the quieter sections of the bay, paying close attention to strandlines and pebble accumulations. The best finds tend to collect where the sea meets hard harbour features.
Beach Personality
Swanage combines traditional seaside charm with a surprisingly varied shoreline. Colourful beach huts, a Victorian pier and sheltered waters give the bay a welcoming feel, while the harbour area quietly hides the most productive hunting ground. It is a beach that rewards local knowledge, with many visitors spending their day on the sand while the best glass sits tucked away against the old stonework at the southern end of the bay.
Dog friendly?
Monkey Beach is dog-friendly all year round, which neatly coincides with the best hunting section of the bay. North Beach is also dog-friendly all year. The main central beach bans dogs from 1 May to 30 September. In practice, bring them and head straight for Monkey Beach.
The South West Coast Path from Swanage south toward Durlston Country Park and beyond is exceptional dog-walking country and a natural extension after the hunt. Check our Yappy Places listing for Swanage for dog-friendly cafés and pubs in town.
Practical information
Parking: Main Beach car park off Victoria Avenue (BH19 1PW) for the central beach. Broad Road car park (BH19 2AP) for Monkey Beach and the pier area. North Beach car park off Bonfields Avenue (BH19 1NL) for the northern section. All pay and display.
Top tip: park at Norden and take the Swanage Railway steam train into town, it passes Corfe Castle and is worth it in its own right.
Toilets: Public toilets along the seafront and at the car parks.
Food and drink: Good choice throughout the town, seafront kiosks, fish and chip shops, cafés and restaurants along Shore Road and the town centre. The pier itself has a café. Swanage is a well-serviced resort town year-round.
Getting there without a car: Swanage is the eastern terminus of the heritage Swanage Railway, running from Wareham via Corfe Castle. Regular trains in season. By road, the town is accessible by bus from Poole and Wareham.
Accessibility: The seafront promenade is accessible. The main beach has level access. Monkey Beach has some uneven ground around the quay area.
What to bring
- Comfortable shoes – the main beach is easy walking; Monkey Beach is rougher around the quay
- A small container for finds
- Tide times checked before you go
- Layers – Swanage faces east, and a south-easterly wind is the one that reaches this bay
- A steam train budget, if you’re coming by rail, the Swanage Railway is genuinely worth it
The history behind the glass
Swanage has been exporting stone for longer than most English towns have existed. Purbeck stone, the grey-blue limestone quarried from the hills behind the town, was already being shipped to London in the medieval period. By the 18th century, the trade had become the economic backbone of the town, with stone boats leaving the quay in a steady stream bound for London’s streets and buildings. Purbeck marble paved the floors of medieval cathedrals. Purbeck stone kerbed the pavements of Victorian London.
The man who turned that trade into something more is John Mowlem, born in Swanage in 1788, the son of a quarryman. He left at seventeen with his tools on his back and eventually built one of the great Victorian construction firms, paving Fleet Street, The Strand, and dozens of other London thoroughfares with Purbeck stone shipped from the quay at his home town. His nephew and partner George Burt took the enterprise further, and between them they transformed Swanage itself using the return ballast trips from London to bring back architectural salvage, ironwork and stone that Burt scattered around the town with a magpie’s enthusiasm.
The Wellington Clock Tower from London Bridge. A cast-iron drinking fountain from the City. Column capitals from London buildings being demolished for road widening. Swanage became, improbably, a repository for Victorian London’s cast-offs.
All those ballast trips two centuries of boats loading and unloading at the quay, returning with whatever London wanted rid of, put material into the harbour water.
The glass in the shingle around Monkey Beach and the old quay is the residue of that trade, of the fishing boats that worked the bay alongside the stone ships, of the passenger steamers that ran from the pier from the 1870s to the 1960s. It’s modest in volume. But the story behind it is more interesting than most Fair beaches can claim.
From beach to jewellery
Found something in the Swanage shingle? At Mermaid Tears, every piece starts exactly where you’ve been standing. SeaGlass is hand-hunted from UK beaches and handmade into something lasting. Browse the collection →
Disclaimer: Tide times, dog restrictions, parking charges and beach conditions change regularly. Always verify before visiting. Beach byelaws are updated annually. Check with Swanage Town Council or Dorset Council for the most current dog restriction rules.
Last updated: May 2026
Frequently asked questions
Is Swanage good for sea glass? It’s a Fair beach – glass is present around Monkey Beach and the northern end of the bay, with the harbour and quay history giving it a genuine source. The sandy main beach is not the hunting ground; the shingle sections at either end of the bay are. Expectations set correctly, it’s a pleasant visit with a good story behind it.
Where is the best place to look for sea glass in Swanage? Monkey Beach is the small cove between the Victorian pier and the old stone quay at the southern end of the bay. Work the pebble ridges against the quay and pier structures. North Beach at the quieter northern end is also worth trying.
Are dogs allowed at Swanage beach? Monkey Beach and North Beach are dog-friendly all year. The main central beach bans dogs 1 May to 30 September. Monkey Beach is conveniently also the best hunting section, so the two work well together out of season.
What is the best time to visit Swanage for sea glass? October to April, low tide, after south-easterly rough weather. The bay is sheltered from the prevailing south-westerly wind, so it’s south-easterly storms that refresh this foreshore rather than the Channel weather that drives Charmouth and West Bay.
What is Monkey Beach in Swanage? A small sand and shingle cove at the southern end of Swanage Bay, between the Victorian pier and the old stone quay. Dog-friendly all year, less visited than the main beach, and the best section for sea glass hunting in the bay.
Can I arrive at Swanage by steam train? Yes – the Swanage Railway runs heritage steam services from Wareham via Corfe Castle. It’s a genuinely lovely way to arrive, the views of Corfe Castle from the train are excellent, and the station is a short walk from the beach.
