The concrete structure you see is actually the spillway with three gates . Again , the river offered us refreshing views . It was a long ride back to Ipo Dam and the ride was about 45 minutes to one hour . As soon as we got back , we made our way to San Jose del Monte for a late lunch . We had one last stop before calling it a day , and that 's the La Mesa Dam .

OPT: - We were going on a joy - ride .. - None of the above choices .. - We were on vacation .. - We were going to work ..
Q: What may be the plausible reason we were out driving around ?
We were on vacation .