Length 35.0m
Year 2006




Motor Yacht

Tethys is a semi-custom motor yacht launched in 2006 by Couach Yachts, in France.

Couach Yachts has cultivated and accumulated exceptional marine “savoir-faire” since its inception in 1897 and today specialises in exceptional made-to-measure superyachts built entirely in Glass Kevlar that range from 20 to 50 metres in length.


Tethys measures 35.00 metres in length, with a max draft of 1.70 metres and a beam of 6.80 metres.

Tethys has a GRP hull with a GRP superstructure.

Her exterior design, naval architecture and interior design is by Couach Yachts.


Tethys is a semi-custom Couach 3500 FLY model.

Other yachts based on this Couach 3500 FLY semi-custom model include: Water Toy III, Liselott, Lady Emma, Amadeus, Couach 3500 Fly 06.

Performance and Capabilities

Tethys has a top speed of 32.00 knots.

Tethys has a fuel capacity of 20,000 litres, and a water capacity of 2,000 litres.


Tethys accommodates up to 10 guests in 5 cabins. She also houses room for up to 5 crew members.

Other Specifications

Tethys is MCA compliant, her hull NB is 3300.01.

Tethys flies the flag of Malta.