Jellyfish bloom reports soar from Cornwall to the Outer Hebrides

Busy beaches and warm, calm seas fuel sightings of lion's manes, compasses and moons

From a mile-long" swarm in Devon to warnings to swimmers in the Outer Hebrides, it seems jellyfish are difficult to ignore this summer.

High temperatures, calm and warm seas and packed beaches have resulted in large numbers of reports of jellyfish blooms around the UK coast, and combined with a glut of the plankton on which they feed, some are reaching record sizes, experts said.