You can usually find the times of sunrise and sunset in your local newspaper. Being the sun's day, the last day before it begins its descent, you may want to try and get up early enough to see the sunrise. Consider camping out on a high hill-top the night before, to ensure that you get a good view of the sunrise, or spending the day together hiking and picnicking in the summer sun. Between Beltaine and Midsummer is the time to plant the seedlings you started after Spring Equinox. Your local farmers market probably has lots more plants.
Shady spots are good for herbs, sunny spots are good for vegetables and most flowers.
When the flowers are blooming, you could pick one of your favorites and press it. Place the flower between two sheets of wax paper and place it in a thick book. St. John's Wort is a useful herb which is especially sacred to the sun. It has lovely little yellow blossoms. Plant it in a sunny spot aound Beltaine and it should be ready to harvet the tops and blooms by Midsummer.