Traditional Morris dancers welcomed May Day at first light across the region on Sunday but in Norfolk it was to the sound of thunder.
Traditional dance teams gathered on St James Hill to see dawn break but it was shrouded in cloud and rain fell.
Dancers in King's Lynn watched the sun rise from Knights Hill traffic island the highest point in west Norfolk.
Dancers also met the dawn from the beach at Felixstowe and at Wandlebury Ring - the highest point in Cambs.
The Norwich event was revived more than 25 years ago as a celebration of the start of summer.
After dancing until the sun lights up Norwich the Ketts Morrismen went to the Maddermarket, where the Elizabethan actor and dancer William Kemp jumped over the wall at the end of his famous dance from London to Norwich in 1600.
King's Lynn sw a dancers' parade round the town centre with May garlands to the noisy accompaniment of bull horns.
Spectators at Felixstowe said it was the best way to welcome the summer and Martin Tooley of the Devil's Dyke Morris Men said the Cambridge event marked a special day for the troupe.