Underground Tours in Portimao at a glance
- Our pick: Benagil Cave boat tour: 10 caves, 15 beaches, € 25 per person (1h, 4.98★ · 1,546).
- Best value: Portimão to Benagil speedboat cave tour: 90 minutes, € 15 per person (1h 30m, 4.79★ · 470).
- Private option: Private Benagil Cave tour from Portimão: 20 caves, € 330 per group (1h 45m, 4.79★ · 53).
Price per person across the 4 options priced per person: € 15–€ 35 (median € 25). With 100+ reviews: 4 of 6.
Of the 6 options: 6 with live guides in English, 6 with free cancellation, 6 with instant confirmation, 4 kid-friendly, 2 private and 6 bookable last-minute.
How we rank: quality, number of reviews, availability, booking conditions and relevance to the topic. In the comparison table, our top 3 comes first. Prices are per person, except options priced per group: that price is for the whole group, and the per-person figure assumes the group is full.
Underground Tours in Portimao
Based on each operator's calendar. Confirmed when you book.
6 options
Benagil Cave boat tour: 10 caves, 15 beaches One-hour boat tour from Armação de Pêra exploring 10 sea caves and 15 Algarve beaches, including Benagil cave and Praia da Marinha. Every day · 09:00, 10:30, 12:00, 14:00 and 15:30 · All ages ★ 4.98 (1,546 reviews) Duration: 1h Live guide: EN · PT · FR · ES ✓ Free cancellation. from € 25 per person
Portimão to Benagil speedboat cave tour: 90 minutes Speedboat cave tour from Portimão to Benagil with experienced skipper, lifejackets and free parking. The boat is small enough to enter caves most tours cannot reach. Every day · 09:00, 10:30, 12:00, 14:30 and 16:00 · All ages ★ 4.79 (470 reviews) Duration: 1h 30m Live guide: EN · PT · FR · ES ✓ Free cancellation. from € 15 per person
Benagil Cave Cruise Portimão: 2-Hour Boat Tour & Swim Stop Two-hour boat cruise from Portimão through Benagil and Algar Seco caves with a swim stop. Daily departures, pickup from nearby villages, small groups. Mon–Sat · 11:30 · All ages ★ 4.93 (136 reviews) Duration: 2h Live guide: EN · PT · ES ✓ Free cancellation. from € 30 per person
Benagil Cave boat tour from Armação de Pêra: 15 caves Boat tour from Armação de Pêra to Benagil Cave and 15 sea-accessible caves along the Algarve coast, with guide and life jacket included: 1.5 hours departing from the beach. Every day · 13 start times, 08:30 to 16:00 · All ages ★ 4.90 (102 reviews) Duration: 1h 30m Live guide: EN · PT · FR · ES ✓ Free cancellation. from € 35 per person
Private Benagil Cave tour from Portimão: 20 caves Private boat tour from Portimão along the Algarve coast to Benagil Cave and 19 other sea caves. Every day · 08:00, 09:00, 10:00, 12:00 and 15:00 ★ 4.79 (53 reviews) Duration: 1h 45m Live guide: EN · PT · ES ✓ Free cancellation. from € 330 per group
Private Benagil Cave boat tour from Armação de Pêra Private boat tour from Armação de Pêra to Benagil Cave with a guide in English, Spanish, Portuguese or French. Every day · 16 start times, 08:00 to 17:00 ★ 4.96 (28 reviews) Duration: 1h Live guide: EN · PT · FR · ES ✓ Free cancellation. from € 250 per group
All 6 options, side by side
✓ 2026-11-14| Option | Price | Duration | Rating | Days and times | Guide languages |
|---|---|---|---|---|---|
| Benagil Cave boat tour: 10 caves, 15 beachesOur pickGroup of up to 10 | € 25 per person | 1h | 4.98★ · 1,546 | Every day · 09:00, 10:30, 12:00, 14:00 and 15:30 | English, Spanish, French +1 |
| Portimão to Benagil speedboat cave tour: 90 minutesBest value | € 15 per person | 1h 30m | 4.79★ · 470 | Every day · 09:00, 10:30, 12:00, 14:30 and 16:00 | English, Spanish, French +1 |
| Private Benagil Cave tour from Portimão: 20 cavesPrivate optionPrivate | € 330 per group up to 13 people · ≈ € 25 per person if 13 go | 1h 45m | 4.79★ · 53 | Every day · 08:00, 09:00, 10:00, 12:00 and 15:00 | English, Spanish, Portuguese |
| Benagil Cave Cruise Portimão: 2-Hour Boat Tour & Swim StopGroup of up to 14 | € 30 per person | 2h | 4.93★ · 136 | Mon–Sat · 11:30 | English, Spanish, Portuguese |
| Benagil Cave boat tour from Armação de Pêra: 15 caves | € 35 per person | 1h 30m | 4.90★ · 102 | Every day · 13 start times, 08:30 to 16:00 | English, Spanish, French +1 |
| Private Benagil Cave boat tour from Armação de PêraPrivate | € 250 per group | 1h | 4.96★ · 28 | Every day · 16 start times, 08:00 to 17:00 | English, Spanish, French +1 |
By what you need
- Private (2): Private Benagil Cave tour from Portimão: 20 caves (€ 330 per group) · Private Benagil Cave boat tour from Armação de Pêra (€ 250 per group)
- Small groups (up to 15) (2): Benagil Cave boat tour: 10 caves, 15 beaches (€ 25 per person) · Benagil Cave Cruise Portimão: 2-Hour Boat Tour & Swim Stop (€ 30 per person)