Recessional Song Help!

Okay so we're getting married on the beach in October and the company running our wedding ceremony told me to pick a processional song and recessional song, so I'm thinking of 1000 years by the piano guys for the processional (I guess to be played while the wedding party gathers and also for when I walk down the aisle-do you think this would be weird to only have one song?) BUT I have no idea what to do for the recessional song!?Please help!! I need suggestions, I was thinking of doing an instrumental song to keep them both that way but it doesn't have to be. Thank you in advance!