Babies and toddlers hit the dance floor of a Sunderland nightclub on Saturday afternoon in the first event of its kind in the city.
Youngsters ditched their dummies and grabbed their glo-sticks for a Flower Power-themed afternoon of old-skool music at Independent in Holmeside.
And aside from energetic dancing to drum'n'bass, house and garage music played by DJ Glenn Aston, the tots and their parents took part in a range of fun activities.
Music featured at the event included tracks by Groove Armada, Orbital and A Guy Called Gerald.
There was also a multi-sensory dance floor with club visuals, bubble machines, glitter cannons and a giant parachute dance.
A play area with tents and tunnels, a safe-space for babies with a ball pool and soft mats, featured alongside a craft area with a colouring mural and a playdough table.
It was the first time Big Fish Little Fish brought their family rave to Sunderland, after successful events held at venues across the region.
It was a massive success, and organiser Ruth Lee has promised to bring the event back to Sunderland for those who missed out this time around.
BFLF was founded by Hannah Saunders in Brixton, London and events are now held across the country.
Ruth first got involved when she took her toddler to BFLF rave in Galashiels in the Scottish borders.
Keen on the idea to create an event suitable for the post-rave generation, who now have children, she started running events in the North East last November.
She said: "we launched in Newcastle on November 27, last year.
"It's a family rave and the original idea came from Hannah, who had a couple of children.
"She took them to the usual baby and children's groups, but she found them quite boring and she wanted to create something everybody could enjoy together - parents and children."
Ruth said she had sold around 200 tickets for the Independent rave, which ran from 2pm until 4pm.
"It's great," she said. "Everybody seems to be enjoying themselves and we hope to come back to Sunderland again.
"There's been a massive response to the event on Facebook, with people disappointed that they haven't been able to attend due to having other plans.
"It would be great to hold more raves here - hopefully this is the first of many."
Visit www.facebook.com/bigfishlittlefishevents for more information.