10th-12th July 2026

Carreglwyd Estate, Llanfaethlu, Isle of Anglesey, North Wales, UK

A weekend of live international bands & DJs, culture, food & drink spread over seven stages in the magical grounds of Carreglwyd Estate.

Tonnau (pronounced
ton-eye) means 'waves' or 'tones' in Welsh - fitting for a festival that's situated just 20 minutes walk from the beach!

It's a unique and family-friendly event set in an area of outstanding natural beauty,  rapidly gaining a reputation as one of the best small independent festivals the UK has to offer.


TIER 1 'EARLY BIRDS' SOLD OUT

TIER 2 TICKETS ONLY 50 LEFT!

FINAL TIER 3 TICKETS ON SALE SOON



All festival and site information can be found on our ticketing page, please see link below.


ALL FESTIVAL TICKETS GLAMPING T-SHIRTS & MERCHANDISE APPLY TO STEWARD

The Venues

Carreglwyd is a treasure trove of nooks and crannies, nestled in woodland over looking Holyhead Bay and the Irish Sea. Tonnau is spread across the estate and has a number of stages, bars, food areas and late-night hideaways.