The Sureste coincides in places with the Levante. I chose the Levante from Valencia over the Sureste from Alicante (years ago) based on advice from the forum. I loved the Levante - beautiful in springtime; many lovely interesting large towns with beautiful plazas, churches; many castles in wide open country. So if you’re still in the dreaming phase, you might want to look at the Levante. Great online guide from the Amigos in Valencia as well.
Camino de Levante. Homologación GR-239. – Home
vieiragrino.com
Asphalt alert! The first three or four days are almost all asphalt and that was hard on my feet, but after that it got much better. In the initial stages you are walking through Valencia suburbs and then through Valencia rice paddies and fruit orchards. I kept hoping that the orchards would have some dirt paths, but almost everything was paved till Xátiva, which is where you will have your first amazing castle to visit. Just amazing!