Medulin: Glass Boat Tour to Kamenjak & Golumber Cave

Medulin glass boat trip with swimming at Kamenjak cliffs and hidden cave stop

You’ll ride a glass-bottom boat from Medulin through island waters, spot sea life beneath your feet, swim off Kamenjak’s cliffs or explore Golumber cave with your guide (yes, “the mermaid”), and see Porer lighthouse rising above the sea. Expect laughter, salt air, and small surprises that linger after you’re back on land.

Step-by-step itinerary

Day 1 — Glass boat tour and Kamenjak swim

• Depart from Medulin port
• Sail towards Medulin archipelago
• View Porer lighthouse
• Swim at Kamenjak National Park
• Dive in Golumber cave
• Explore flora and fauna
• Jump off boat or feed fishes
• Return to Medulin port

The Experience

Hands gripping the cool rail, I leaned over the side just as the glass bottom slid under a patch of seaweed — you could see little silver fish darting around, almost close enough to touch. The captain (I think his name was Marko?) gave a quick wave from the wheelhouse and pointed out towards Kamenjak. There was this salty breeze that made my hair stick up in weird directions. My kid kept pressing her nose to the glass, giggling every time a crab scuttled by underneath. Honestly, I didn’t expect to laugh that much on a simple boat ride.

We drifted past these low green islands before stopping near some wild-looking cliffs. Our guide — she called herself “the mermaid,” which cracked me up — handed out snorkels and showed us where you could swim right into Golumber cave. The water was colder than I thought (like an instant wake-up), but inside the cave it smelled like wet stone and something almost sweet. My daughter tried feeding crumbs to the fish; they swarmed so fast she squealed and dropped half her snack in surprise. If you don’t want to swim, you can just hang out on deck with a drink — there’s music playing, nothing too loud.

I kept glancing back at Porer lighthouse as we sailed by — it’s this old stone tower from way before any of us were born, standing out against the sky like it’s watching everything come and go. On the way back toward Medulin port, everyone seemed quieter for a bit, just listening to the water slap against the hull or watching sun flickers through the glass bottom. I still think about that view sometimes when things get noisy at home.

Top questions

How long is the Medulin glass boat tour?

The tour lasts about 3 hours from departure to return.

Is swimming included during the day trip from Medulin?

Yes, there’s a swimming break at Kamenjak where you can dive or snorkel near Golumber cave.

Are drinks provided on board?

Yes, drinks are included during your boat tour.

Can children join this Medulin boat trip?

Yes, it’s family-friendly and suitable for all ages.

Will we see Porer lighthouse on this tour?

Yes, you’ll pass by Porer lighthouse during your route.

What happens if there’s bad weather?

The captain may change or cancel the route for safety if sea conditions are poor.

Is public transportation available near Medulin port?

Yes, public transport options are available nearby for easy access.

Do I need special fitness for this trip?

No special fitness is needed; it’s suitable for most travelers except those with poor cardiovascular health.

What’s included

Your afternoon includes drinks served onboard while cruising with a friendly captain and crew; stops for swimming and diving at Kamenjak; time to explore Golumber cave with your guide; music playing softly in the background; plus sightseeing across the Medulin archipelago and past Porer lighthouse before heading back to port.