Glass Bottom Boat Tours in Zakynthos 5 options
From € 25 · 3 of 5 run daily · departures between 08:00 and 15:00 · live guides in 2 languages · most take 3h–4h
Zakynthos Glass-Bottom Boat Tour: Turtle Island & Keri CavesHalf-day glass-bottom boat tour from Zakynthos with hotel pickup or port meeting. Spot loggerhead sea turtles at Turtle Island, swim in turquoise waters.
- 104 reviews
- 4.40★
- Duration
- 3h–5h
- start times · Every day
- 6
Glass Bottom Boat Tour Zakynthos: See Caretta Turtles Up CloseGlass bottom boat tour around Zakynthos's National Marine Park to see loggerhead sea turtles up close, visit Cameo islet.
- 95 reviews
- 4.29★
- Duration
- 3h 30m
Zakynthos Glass Bottom Turtle Boat Tour: Keri Caves & IslandsThree-hour glass bottom boat tour from Agios Sostis port with two swim stops at Keri Caves and Marathonisi Island, plus turtle spotting in Laganas Bay.
- 32 reviews
- 4.84★
- Duration
- 3h
- Every day
- 12:00
Keri Caves glass-bottom boat tour: Zakynthos sea turtle habitatGlass-bottom boat tour from Agios Sostis Harbor through Zakynthos' National Marine Park, stopping at Keri Caves and Marathonisi Island to swim.
- 20 reviews
- 4.50★
- Duration
- 3h
- start times · Fri
- 2
Glass Bottom Boat Tour Laganas: Turtle Spotting & SnorkelingSpot loggerhead turtles from a glass bottom boat, then swim and snorkel at Marathonisi island and Keri caves on this three-hour Laganas tour with an English-speaking guide.
- 151 reviews
- 3.76★
- Duration
- 3h
- start times · Every day
- 2
All 5 options, side by side
✓ 2026-11-03| Option | Price | Duration | Rating | Days and times | Guide languages |
|---|---|---|---|---|---|
| Zakynthos Glass-Bottom Boat Tour: Turtle Island & Keri CavesOur pickPickup offered | € 30 per person | 3h–5h | 4.40★ · 104 | Every day · 6 start times | English |
| Keri Caves glass-bottom boat tour: Zakynthos sea turtle habitatBest value | € 25 per person | 3h | 4.50★ · 20 | Fri · 2 start times | English |
| Glass Bottom Boat Tour Zakynthos: See Caretta Turtles Up CloseAlso recommendedPickup offered | € 33 per person | 3h 30m | 4.29★ · 95 | Next departure: 20 Apr 2027 | English |
| Zakynthos Glass Bottom Turtle Boat Tour: Keri Caves & Islands | € 60 per person | 3h | 4.84★ · 32 | Every day · 12:00 | English, Greek |
| Glass Bottom Boat Tour Laganas: Turtle Spotting & SnorkelingPickup offered | € 250 per person | 3h | 3.76★ · 151 | Every day · 2 start times | English |
Glass Bottom Boat Tours in Zakynthos at a glance
- Our pick: Zakynthos Glass-Bottom Boat Tour: Turtle Island & Keri Caves, € 30 (3h–5h, 4.40★ · 104).
- Best value: Keri Caves glass-bottom boat tour: Zakynthos sea turtle habitat, € 25 (3h, 4.50★ · 20).
- Also recommended: Glass Bottom Boat Tour Zakynthos: See Caretta Turtles Up Close, € 33 (3h 30m, 4.29★ · 95).
Real price per person across the 5 options: € 25–€ 250 (median € 33). With 100+ reviews: 2 of 5.
Of the 5 options: 5 with live guides in English, 5 with free cancellation, 5 with instant confirmation, 3 with hotel pickup, 4 kid-friendly and 4 bookable last-minute.
How we rank: quality, number of reviews and relevance to the topic. In the comparison table, our top 3 comes first. Price per person.