Secret Dalmatian Island: Historical Tunnels, Blue Oasis & Coastal Gastro Tour
A private speedboat day trip from Split brings you to a little-known Dalmatian island where military tunnels, cliffside bays and a crystalline "Blue oasis" meet traditional wine and olive oil tasting. Expect snorkeling, short hikes into dry tunnels, and a slow village meal under the bell.
The Experience
Before You Go
Bring reef-safe sunscreen
Protect marine life—choose chemical-free sunscreen and reapply after swimming.
Wear water shoes
Rugged shores and slippery stone require closed-toe water shoes for safe entry and tunnel access.
Pack a light layer for tunnels
Underground passages stay noticeably cooler than the sunlit deck—bring a windbreaker or thin fleece.
Plan for motion
Boat transfers can be choppy; take anti-nausea measures if you’re sensitive to swell.
Local Knowledge
Hidden Gems
- •A vertical-cliff bay with immediate 30m depth for dramatic cliff dips
- •A village overlook where local families host intimate olive oil and wine tastings
Wildlife
- •Mountain goats on rocky ledges
- •Cormorants and frequent coastal seabirds
Conservation Note
The Adriatic’s seagrass beds are sensitive—avoid anchoring on Posidonia meadows, use reef-safe sunscreen, and follow guides’ instructions to minimize impact.
Many Dalmatian islands were fortified through Austro-Hungarian and 20th-century military projects; hidden tunnel complexes served coastal defense and later Cold War needs.
What to Bring
SwimsuitEssential
For swims in the Blue oasis and snorkeling stops.
Water shoesEssential
Protects feet on rocky shores and provides grip in tunnels and on boat decks.
Reef-safe sunscreenEssential
Protects skin while minimizing harm to marine ecosystems.
Light windbreaker
Useful for breezy crossings and cooler tunnel interiors.
Common Questions
Where do I meet the boat?
Meet-up is typically in Split or Trogir at the designated marina; exact boarding point and time will be confirmed on booking.
Is snorkeling equipment provided?
Yes — snorkeling gear is included in the tour package; bring your own mask if you prefer a personal fit.
Are the tunnels dark or restrictive?
Tunnels are dry and walkable with flashlight use; they involve short stair sections but are generally accessible to those without severe mobility issues.
Can non-swimmers join?
Non-swimmers can participate—swim stops are optional and life jackets are provided for safety during boat and water activities.
Book This Experience
Check AvailabilityDuration
9 hours
Location
Split, Split-Dalmatia
Difficulty
easy
Fitness Level
Suitable for most fitness levels; participants should be comfortable boarding a small boat, short cliffside steps, and basic snorkeling.
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