Aventura sailboats for sale

Buying a used Aventura: matching a single small shipyard's build era to the boat you want

A used Aventura search means shopping one small, continuously run Tunisian shipyard's output rather than sorting through decades of ownership changes and brand relaunches common to bigger production builders. STGi hasn't changed hands or been absorbed by a larger group since the brand's 2005 relocation to Tazarka; it has simply kept building, model generation after model generation, at a modest pace — Multihulls World's January 2025 retrospective put output at four models and roughly 50 units a year. For a buyer, that continuity is the headline: fewer hulls on the used market than a mainstream brand, but a construction history where each generation reflects a specific, documented shift in method rather than an anonymous running change.

Which era to target

Aventura's construction history splits into three generations worth knowing before you buy. The earliest boats — the Aventura 23 (later the 23.5), the 28 and the 36 — were built in France on molds reused from other small catamarans, including Go Marine's Camping Cat and the Diabolo, with the 36 resembling the unrelated Edel 36. After STGi's 2005 move to Tunisia, the yard introduced the brand's first original designs — the Aventura 20, 33 and 43 — moving past the borrowed-mold era of the France-built boats. A third generation begins with the Aventura 34, the model Lasta Design Studio's Samer Lasta used to launch his design tenure at the brand: Multihulls World dates that shift to the mid-2010s, while STGi's own history frames the same partnership as a range renewal announced in 2017 for the 2018 model year, so treat the exact year as approximate either way. Boats from that generation, including the 37, 44 and 45, are built by vacuum resin infusion with glass-fiber reinforcement supplied through a partnership with materials maker SAERTEX, and later hulls in the same generation also carry STGi's own in-house teak decking and veneers, a detail the yard only settled into with this generation.

Navigating the lineup

Aventura's range splits into sailing catamarans, spanning roughly the 34 to the 45, and a separate power catamaran line dating to 2016, running from the A10 through the A14-derived 50 MY and its 56-foot version. Buyers set on sail should stay within the Lasta-designed sailing generation; buyers considering a powercat should look to the 50 MY/56 pairing specifically rather than treating Aventura's sail and power lines as interchangeable. The full model directory on this page breaks each down by year and length.