
Thais cave
Saint-Nazaire-en-Royans


1 hour cruise with commentary on the Isère river, departing and returning from St Nazaire en Royans. Historical approach to the places and villages crossed, as well as its fauna and flora.
"Royans-Vercors" paddle boat, one of the most beautiful cruises in Rhône-Alpes.
A stone's throw from Grenoble, near St-Marcellin and as far as St Nazaire en Royans, the Isère offers the unexpected aspect of a landscape resembling a "bayou" where the Mississippi-style paddle boat glides on calm water.
Discovery commented, of course, by our crew. of the flora and fauna and architectural heritage of the villages of Sône and St Nazaire en Royans, with the dizzying cliffs of the Vercors and the red rocks of Royans as a backdrop,
Bring binoculars to fully enjoy this natural break and observe the birds.
You also have the possibility to personalize your program by combining the Wheeled Boat cruise with a visit to the Grotte de Thaïs or the Garden of Petrifying Fountains, according to your preferences!
New: Birdwatching cruises
Pets allowed : yes
Important information regarding animals : Dogs must be kept on a leash. The cabin crew reserves the right to refuse boarding to any dog exhibiting dangerous behavior. Limited number of places available.
Duration : 2 hours
Reception of people with disabilities: contact us
Paddlewheel Boat + Grotto of Thaïs Package OR Petrifying Fountains Garden + Grotto of Thaïs Package
Use of organically labeled cleaning products
Services
Equipment
Accessibility
Documentation available in:
Prices
From 11/04 to 03/07/2026
Adult: 16,70 €
Child: €11,30 (Child from 4 to 10 years old
For a child aged 0 to 3: €3,50)
Adolescent: €15,10 (Young people aged 11 to 17)
Reduced rate: €10,20 (Disabled child aged 4 to 17)
Student: €15,10 (Student and job seeker)
Person with a disability: €15,10 (Disabled adult)
Adult group: €13,10 (Rates apply to groups of at least 20 people. Prices are inclusive of tax, per person, based on a single payment for the entire group.)
Children's group: €7,10 (Price for "nursery and elementary" school group)
Price for school group "middle and high school": €8,20
Rates apply for a group of at least 20 people.
The prices indicated are inclusive of VAT, per person, based on a single payment for the entire group.).
From 04/07 to 31/08/2026
Adult: 17,70 €
Child: €12,30 (Child from 4 to 10 years old
Price for a child from 0 to 3 years old: €4,50)
Adolescent: €16,10 (Young people aged 11 to 17)
Reduced rate: €11,20 (Disabled child aged 4 to 17)
Student: €16,10 (Student and job seeker)
Person with a disability: €16,10 (Disabled adult)
Adult group: €13,10 (Rates apply to groups of at least 20 people. Prices are inclusive of tax, per person, based on a single payment for the entire group.)
Children's group: €7,10 (Rates for "nursery and elementary" school groups)
Rates for school groups "middle and high school students": €8,20
Rates apply for a group of at least 20 people.
The prices indicated are inclusive of VAT, per person, based on a single payment for the entire group.).
From 01/09 to 30/09/2026
Adult: 16,70 €
Child: €11,30 (Child from 4 to 10 years old
Child rate from 0 to 3 years: €3,50)
Adolescent: €15,10 (Young people aged 11 to 17)
Reduced rate: €10,20 (Disabled child aged 4 to 17)
Student: €15,10 (Student and job seeker)
Person with a disability: €15,10 (Disabled adult)
Adult group: €13,10 (Rates apply to groups of at least 20 people. Prices are inclusive of tax, per person, based on a single payment for the entire group.)
Children's group: €7,10 (Nursery and elementary school group)
Rates for school groups (middle and high school students): €8,20).
Group rate from 20 people.
Payment method
Opening
From 11/04 to 30/09/2026 every day.
April 2026: closed on Mondays and Tuesdays
May, June and September: closed on Mondays.
Groups accepted : from 20 to 140 people
Average visit duration for groups : 1 hours
Up 60 people
The establishment provides you with:
Our meeting room:
Serge Caillault
Serge Caillault
Phot'Oser