Two reasons to drive west from Tallinn
Paldiski sits 50 km west of Tallinn, past the suburb of Keila, at the tip of the Pakri Peninsula. It is an unusual place: a town that was entirely closed to the public until 1994 because it housed a Soviet nuclear submarine training facility (a reactor-less land-based simulator and full naval base). The ruins of that facility — the characteristic Soviet concrete blocks, a large dome structure — are still visible along the coast, slowly reclaiming themselves to nature.
For most visitors, Paldiski is a stopover on the way to two genuinely spectacular natural sites: the Pakri limestone cliffs and, slightly east, the Rummu submerged quarry. Neither is well-known internationally; both are among the most visually arresting landscapes in Estonia.
Rummu quarry
Rummu is the site that brings most visitors west of Tallinn. A limestone quarry that operated using prison labour throughout the Soviet period, it was flooded when the pumps were shut down in the early 1990s and the prison closed. The result is a lake of extraordinarily clear turquoise water, with the ruins of prison buildings, guard towers, and quarry equipment visible through the surface.
In summer, Rummu functions as a beach and swimming area — locals come with inflatables, SUP boards, and picnic blankets, and the clear water is perfect for snorkelling (you can see the quarry walls and derelict machinery below the surface quite clearly). Entry to the recreation area: €5–8 per person in season (May–September).
The atmosphere is unlike anywhere else in Estonia: post-industrial ruin, beautiful water, Soviet prison walls, and families having picnics simultaneously. It defies easy categorisation and is best experienced rather than described.
The coastal cliffs and Rummu submerged quarry day tour from Tallinn combines both sites with a guide who provides the historical context for the prison and quarry. For a more active option, the off-road Estonian forests and coast safari covers the Paldiski area along with stretches of the Lahemaa coastal forest in a 4WD vehicle — good for visitors who want to see the less accessible stretches of coast.
Pakri limestone cliffs
The Pakri cliffs stretch along the northern coast of the peninsula for about 2 km, reaching up to 25 metres in places. These are Ordovician limestone formations — among the best exposed sequences in Northern Europe — and the cliff-edge path above them gives views north across the Gulf of Finland toward Finland. In good visibility from the highest points, Finnish islands are visible.
The cliff path is free to walk and largely unmarked; follow the coast trail from the Pakri Lighthouse area. The Pakri Lighthouse itself (built 1889) is a distinctive red-and-white striped tower that you can climb in summer (€3). The coastline path between the lighthouse and the northern tip of the peninsula takes about 1.5 hours.
The cliffs are partly eroding, and sections near the edge should be approached with care — there are no railings.
Soviet history in Paldiski
The town of Paldiski itself is worth walking through rather than stopping at. Built as a model Soviet naval town, it has the grid layout, institutional architecture, and general austerity of that era. The nuclear training facility structures are visible from the road near the southern cape — a large dome (the submarine simulator building), several concrete blocks, and a perimeter of derelict fencing. These are not officially open to the public, though the outer fences have been accessed.
The harbour at Paldiski is operational as a small commercial port. The town has a small history museum (Paldiski muuseum) near the main square, open limited hours, with material on the naval base period.
Getting there
By car: 50 km from Tallinn along the Tallinn–Haapsalu road (Rannamõisa tee / Route 8), then south to Keila-Joa and west to Paldiski. About 50 minutes depending on traffic. For Rummu, turn off the main Paldiski road at Vasalemma — it is clearly signposted in summer.
By public transport: Buses run from Tallinn (Balti Jaam) to Paldiski via Keila several times daily (€4–6, about 1 hour 20 minutes), but getting to Rummu from the bus stop requires a taxi or additional bus that runs infrequently. A car is significantly more practical.
On a day tour: the Rummu and Paldiski tours from Tallinn are available as guided half-day or full-day trips. See the links above or the Paldiski and Rummu day trip guide for operator details.
Combining with Keila-Joa
On the way to or from Paldiski, the Keila-Joa waterfall and Schloss Fall manor (15 km east of Paldiski) make a good stop. The waterfall (Estonia’s widest at about 60 m across, though not tall at 6 m) is at its most impressive in spring. The 19th-century manor house ruins are freely accessible. Allow 45 minutes. See the Keila-Joa waterfall guide for details.
For the full picture of day trips west and north of Tallinn, the best day trips from Tallinn guide ranks all options. The 3-day Tallinn itinerary suggests Lahemaa as the main day trip for first-timers, but Paldiski-Rummu is a strong alternative for those who prefer industrial history and wild swimming over bog walks. For car hire advice, see the renting a car in Estonia guide. If you are also interested in the Soviet history of Tallinn itself, the Soviet Tallinn guide and the Patarei Sea Fortress guide are good companion reads.