Vol. III takes over Zarautz from 29 September to 6 October 2026: an invitational twin-fin surf week with culture, skate, music and community on the Basque coast.

The Twin Fin Invitational is an independent twin-fin surf event and cultural moment created by professional free surfer William Aliotti. It celebrates timeless style and creativity on classic twin fins: mixed heats, men and women together, no contest panels, no pressure scores. Surfers and filmers highlight standouts for style, flow and authenticity. Each edition is a full week of premieres, live music, art, shaping and community gatherings. Past editions have included beach cleanups and pathways into lifeguard training. Vol. I (2024, Seignosse) and Vol. II (2025, Vieux-Boucau) set the tone; Vol. III moves to Zarautz for one week of surf, culture and community on the Basque coast, Spain.

PROGRAM:

Tue 29 Sep — Arrivals & welcome
Wed 30 Sep — Premiere night at Aritz’s Shelter Bar · SURF DAY
Thu 1 Oct — Shelter Tom Curren family concert · SURF DAY
Fri 2 Oct — Aritz Association event · SURF DAY
Sat 3 Oct — Explore Basque Country · SURF DAY
Sun 4 Oct — Skate cash-for-tricks at beach skatepark & concert · SURF DAY
Mon 5 Oct — Pukas Factory visit · SURF DAY
Tue 6 Oct — Prize giving & closing party

Competition heats run when conditions allow between 30 September and 6 October.

FORMAT & RULES
Two days of surfing in ~30-minute mixed heats (6–7 surfers), at least two rounds, no elimination format. Twin fins only — keel fins. At the board’s widest point (middle), width must be 19.5′′ or wider. Tail width tip to tip must be greater than 9′′. Surfers must ride front -and back- side. After surfing, surfers review footage and vote on style, flow and creativity (not traditional judged scoring).
Prize money: €4,000 each for men’s and women’s overall winners.

SURFERS ATTENDING: MEN — INTERNATIONAL
Clay Marzo, Tom Curren, Dylan Graves, Kaito Ohashi, McKenzie Bowden, Balaram Stack, Sam Piter, Miguel Blanco, Eli Beukes, Brendon Gibbens, Makoa Gomez, Gatien Delahaye, Chippa Wilson

WOMEN — INTERNATIONAL
Juliette Lacome, Lee-Ann Curren, Maud Le Car, Lillian Young, Eden Edwards, Sara Taylor, Holly Wawn, Zoe Jaeckin

EUK
Ainara Aymat, Garazi Sánchez, Kepa Acero, Ander Mendiguren, Aritz Aranburu, Iñigo Idigoras, Rudy Palmboom, Kepa Housset