Does anyone know if the there are daily buses from Arequipa to Chile border.
Yes, Flores goes daily, takes about 6 hours to Tacna. There you can take another bus to Arica, Chile but recommend is to share a car direct to Arica. This way you suppose to cross the border faster and the prices don't differ that much, just a bit more expensive. Be ready to negociate with the drivers. I thought it was fun, otherwise take the bus.
Thank you Enrique, your recommendations are good. BTW my daughter and I are getting excited. Tomorrow is her B-day, 26 and we will deliver good presents for this travel. We arrive Quito 23.7.2008