Heading to Portugal with my family in a few weeks, and the plan is to leave from Porto to Lisbon, and stop off for a few nights on the way. I origianlly had planned to stay in Coimbra, but then thought maybe would be nice to stay on the beach and just do a daytrip to coimbra. I'll be with my two younger boys (ages 12 & 10) and so amount of time spent in museums/churches is usually kept to a minimum. I booked a place in Sao Martinho do Porto as well, but wondered
a. if anyone had been to this town and would suggest it, or is there another beach town that would have more to do?
b. if we should stick with Coimbra (not sure if theres more than just the university there to explore)
Thanks all for any input you have!!