Here is a quote from John Keats. It is taken from ‘Bright Star: Love Letters and Poems of John Keats to Fanny Brawne:
I almost wish we were butterflies and liv’d but three summer days – three such days with you I could fill with more delight than fifty common years could ever contain.” ~ John Keats
Think of three “delights” you could present to someone on a summer day. Write them into your poem. Or even pen a butterfly poem! Or an ‘Ode to a Bright Star’.
You’re being given a free reign to write to this fine summer day!