Hellstorm takes over INSOMNIA in Puerto de la Cruz on Saturday, 31 October 2026, from 23:30 to 06:00. This adults-only Halloween night focuses on hard techno and the underground, with hardstyle, schranz, hard groove and hyper-trance in the mix. There is no dress code, but admission is restricted to guests aged 18 and over. Check the official ticket page for current tiers and availability.