The arrival of the one-day spectacular Mac DeMarco… Will See You Now in sunny seaside town Margate on the hottest Saturday of the year seems like a brilliant confluence of events. However, the event's no re-entry policy left many punters in two minds as to whether to spend their early afternoon on the packed but gloriously shining sands of the beach, or to head in to the theme park for an afternoon of music and rides.

For this punter it was the latter, after all I hadn’t packed a towel or swimming trunks. Girl Ray’s charming turn on the main stage certainly made my decision feel like the right one, their airing of new songs synchronising oddly well with the flipping and revolving funfair attractions all around. It was hard to pull myself away from my shaded seat halfway through their set to go and see Thurston Moore – but the legendary Sonic Youth man carries an undeniable magnetism.

At least the other stage, the indoors and so-called Hall By The Sea, offered respite from the glaring sun, and shorter bar queues. That was unfortunately the best that can be said about Moore’s early afternoon slot. Taking to the stage without a band or a vocal microphone, he started strumming on his guitar; a lone, tall, imposing figure on the stage. We waited for more band mates, for someone to bring him something to sing into, for him to start spouting off guitar fireworks… for something. At one point he pulled out his trusty drumstick and bent his strings a little awkwardly, but that was about it. I was starting to feel I’d made the wrong decision not to stay on the beach.

These doubts were allayed by the brilliant Yellow Days, who saved the afternoon with their lovably laid-back jams, resounding out over the mostly-seated audience on the main stage. Surely finding it hard to move or breathe too much in the stifling heat, the act was fully into their performance, bobbing and jamming to their sweltering indie-R&B stylings, and the crowd audibly appreciated their melodious efforts.

Back in the Hall By The Sea, Australian punks Amyl and the Sniffers put on a set rousing enough to see some crowd members energetically pogoing along, seemingly forgetting the day’s heat for a moment. Elsewhere the rides were in full flow (except the Scenic Railway, which was seen breaking down numerous times during the afternoon); the Chair-O-Plane gave riders a lovely artificial breeze, while the queue for Pinball X took much longer than expected, but the ride still provided a few good, dizzying laughs in the end.

The half-set overlap of Aldous Harding and Tirzah can’t have pleased too many of the attendees, who probably would have liked to have seen the whole sets of both artists. Starting earlier, and on the main stage, probably meant that Aldous Harding had the bigger crowd, and she made the most of it with her whimsical ballads wafting out over the sunstruck crowd, who lay about on the grass in various stages of dazedness, lost in the mellifluous tales like ‘The Barrel’.

Those who made the trip over to the Hall By The Sea to see Tirzah were treated to a run through the bangers that made up last year’s debut album Devotion. Backed by two of the key collaborators on the record, Mica Levi and Coby Sey, Tirzah made use of the indoor venue’s juicy low end to rumble and caress her crowd, who stirred appreciatively in their late-afternoon drunkenness.

Finally it all converged back on the main stage for the day’s main draw, Mac DeMarco. Seemingly fully aware of the energy necessitated to sustain a headlining live set, Mac alternated between his more subdued recent material and the propulsive pop of his older work. While the injection of the likes of ‘The Stars Keep Calling My Name’ and ‘Cooking Up Something Good’ gave the crowd plenty to jiggle their wares to, there were also resounding singalongs for recent favourites like ‘My Old Man’ and ‘Nobody’. Ever the piss artist, Mac and his bandmates took to sardonically shouting at the audience for more energy, or including joke songs like ‘Choo Choo’ – which certainly tested the patience of this viewer.

However, any chafing felt from unnecessary diversions into pointless extended jams was assuaged by the resounding final run of songs, featuring the smooth groove ‘Chamber of Reflection’ and the hilariously heartfelt ‘Still Together’ (intercut with a medley of goofy covers, as has been Mac and his band’s trademark for some time now). It’s hard to imagine anyone walking out of Dreamland on Saturday evening, straight onto the view of the seafront bathed orange sunset, not smiling and whistling that loping hook of ‘Still Together’ all the way home.