Lofty music sailed with the breeze, settling between the picnic rugs and conversation. A wetness rose from beneath the grass to call in the night as bodies huddled close beneath shared blankets and wine. Cyclists skirted the edges of the park and flew further along the river, drifting purposefully to a place undefined. Clusters fanned in and out of their picnic rugs, returning with warming packaged meals and fortifying drinks…

On typing this out, I would change the last sentence (I was running out of time so felt I rushed it a little) to better describe how people move in and out of a park like an audience does at a festival to go to the loo, get drinks, get food etc. Then I would move the cyclist line to the end instead so that we remain in the park space and then the cyclists draw us out. Otherwise I could start with the cyclist line, work on them skirting the river, drifting past the park, then move further into the park. 

I didn't specifically write about a boat, but I certainly used it as my ‘north star’ as Pat Pattison would say. It influenced my metaphors - lofty, sailed, settling, rose, drifting. There are even more that work in the context of a boat/sailing/travelling/winds. I could go on!