Summer is well known for the Wedding Season as well as the Summer vacations. During the summer I go to a few weddings typically every year. A gift I have gotten back great feedback on is couples massages in Orange County. I buy the bride and groom a massage package gift they certificate. The great part about this is that the couple does not have to have the massages together in the same room, they can get the massages at the same time but in separate rooms if that is what they want.
As I said, I have had great feedback on giving massages to couples as a wedding gift. They can take a day after the ceremony when things slow down a bit to take some time to relax as a couple and unwind. I think is makes a opportunity to take the day and have some lunch or dinner afterwards and make a date out of it. Being a newly married couple is tough, it takes sometime to flatten out the wrinkles of what married life actually is to what you imagined it to be. Another helpful tool I have found is this book, there are many out there, it is good to get some advice from the experts at times.