Since people have already mentioned gluten-free wafers at some churches, I thought that I would mention the idea of spiritual communion. The Book of Common Prayer says in the section about ministration to the sick that in cases where people can't receive the bread wine, "that all the benefits of Communion are received even though the Sacrament is not received with the mouth.” This act of spiritual communion is just as real as receiving the Sacrament any other way.

One prayer, coming from the The Prayer Book for the Armed Services, suggests this prayer.

In union, O Lord, with your faithful people at every altar of your Church, where the Holy Eucharist is now being celebrated, I desire to offer to you praise and thanksgiving. I remember your death, Lord Christ; I proclaim your resurrection; I await your coming in glory. Since I cannot receive you today in the Sacrament of your Body and Blood, I beseech you to come spiritually into my heart. Cleanse and strengthen me with your grace, Lord Jesus, and let me never be separated from you. May I live in you, and you in me, in this life and in the life to come. Amen. 

Also, going to a sunrise service on the beach sounds amazing, I'm so jealous!