Combine an underground journey through the Castellana Caves with a boat tour of Polignano a Mare’s sea caves—full day, swims, and an aperitivo on board. Practical advice for timing, gear, and conditions inside.
Combine an underground journey through the Castellana Caves with a boat tour of Polignano a Mare’s sea caves—full day, swims, and an aperitivo on board. Practical advice for timing, gear, and conditions inside.
You step off an air-conditioned minibus into the cool hush of stone: the Castellana Caves open like a hidden city carved by water, their caverns casting blue-gray shadows while droplets still run slow along stalactites. Later the Mediterranean brightens—Polignano a Mare’s white cliffs cut into the sea, and a small open boat slips into grotto mouths where light filters through aquamarine water.
Verified experiences and guided adventures in the surrounding area.
Operated by Pugliamare · Polignano a Mare, Puglia
You step off an air-conditioned minibus into the cool hush of stone: the Castellana Caves open like a hidden city carved by water, their caverns casting blue-gray shadows while droplets still run slow along stalactites. Later the Mediterranean brightens—Polignano a Mare’s white cliffs cut into the sea, and a small open boat slips into grotto mouths where light filters through aquamarine water.
The day pairs karst geology with coastal karst: a guided 3 km route through Castellana’s cavernous halls (temperatures hover near 16–17°C and the path descends roughly 70 meters) followed by a 90-minute boat circuit of Polignano’s sea caves, including Grotta degli Innamorati and Cala Port’Alga, with stops for swims and an onboard aperitivo.
Castellana’s caves formed over millennia by acidic groundwater dissolving limestone, leaving concretions, canyons and fossil traces that reveal Puglia’s deep geological past. Polignano’s cliffs are older marine terraces—cut and sculpted by waves and weather—and the town’s Adriatic culture centers on fishing, cafes on cliff edges, and short, lively historic lanes.
Practicalities: wear grippy shoes for cave steps, bring a light layer for the cool subterranean air, and have swimwear handy for calm-water dips. Boats are open 7-meter craft, max ~10 people each; seas can be choppy—check weather and heed crew guidance. Expect a full-day schedule (about 8 hours) with walking, short drives, and boat time. This trip suits active travelers who like mixing geology, seaside swimming, and easy coastal exploration in one day.
moderate.
8 hours.
Good for moderately fit travelers comfortable with walking stairs, short hikes, and getting on/off small boats.
The guided route is roughly 3 km of internal pathways and descends about 70 meters, taking around 90–100 minutes within the cave system.
Yes—there are planned stops for swimming from the boat in calm waters; the crew will confirm conditions and safety before you enter the water.
The caves involve many stairs and uneven ground; while the experience is family-friendly, it may be difficult for guests with limited mobility—check with operators for infant seats and accessibility options.
The operator cancels for bad weather; cancel at least 24 hours for a full refund, and day-of cancellations due to weather are typically refunded according to the provider’s policy.
Polignano developed as a maritime hub with ancient roots; nearby caves and coastal terraces show centuries of human use and natural lime formation tied to Puglia’s karst landscape.
Boats operate in fragile coastal ecosystems—stick to marked entry points for swimming, avoid littering, and follow crew guidance to minimize disturbance to marine life.
Pugliamare operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




You step off an air-conditioned minibus into the cool hush of stone: the Castellana Caves open like a hidden city carved by water, their caverns casting blue-gray shadows while droplets still run slow along stalactites. Later the Mediterranean brightens—Polignano a Mare’s white cliffs cut into the sea, and a small open boat slips into grotto mouths where light filters through aquamarine water.
You step off an air-conditioned minibus into the cool hush of stone: the Castellana Caves open like a hidden city carved by water, their caverns casting blue-gray shadows while droplets still run slow along stalactites. Later the Mediterranean brightens—Polignano a Mare’s white cliffs cut into the sea, and a small open boat slips into grotto mouths where light filters through aquamarine water.
The day pairs karst geology with coastal karst: a guided 3 km route through Castellana’s cavernous halls (temperatures hover near 16–17°C and the path descends roughly 70 meters) followed by a 90-minute boat circuit of Polignano’s sea caves, including Grotta degli Innamorati and Cala Port’Alga, with stops for swims and an onboard aperitivo.
Castellana’s caves formed over millennia by acidic groundwater dissolving limestone, leaving concretions, canyons and fossil traces that reveal Puglia’s deep geological past. Polignano’s cliffs are older marine terraces—cut and sculpted by waves and weather—and the town’s Adriatic culture centers on fishing, cafes on cliff edges, and short, lively historic lanes.
Practicalities: wear grippy shoes for cave steps, bring a light layer for the cool subterranean air, and have swimwear handy for calm-water dips. Boats are open 7-meter craft, max ~10 people each; seas can be choppy—check weather and heed crew guidance. Expect a full-day schedule (about 8 hours) with walking, short drives, and boat time. This trip suits active travelers who like mixing geology, seaside swimming, and easy coastal exploration in one day.