Jameos del Agua is especially good if there's a concert/gig on - very atmospheric. I noticed in the Canaries music festival of 2022 there was a recital by the Gabrieli brass ensemble there. Had I been on the island I would have certainly gone.
There might be cavers there but not heard of any British ones except those on hols there! This is a good link from a tourist site for Lanzarote caves with the best wild cave being Cueva Naturalistas but if you want big then Cueva de Los Verdes upstream of the tourist cave (as the lava flowed) Link here https://www.ilanzarote.com/caving/
There might be cavers there but not heard of any British ones except those on hols there! This is a good link from a tourist site for Lanzarote caves with the best wild cave being Cueva Naturalistas but if you want big then Cueva de Los Verdes upstream of the tourist cave (as the lava flowed) Link here https://www.ilanzarote.com/caving/