I will be arriving in Santa Justa station by train early in the morning. My friend is arriving in Plaza de Armas station by bus early the same morning. We want to meet up and spend the day seeing as many of the sights in Seville as possible in one day. I believe most of the sights to be seen are in close proximity and walking between them is possible? Advice please as to where me and my friend should meet and the best means of transport to do so. Thank you.