In the season there are 2 routes, yellow and green. The best one is the one that goes around Cap Salou. The other that goes to Port Aventura and halfway to Cambrills is ok Stops are dotted around the town, the one we used is the one below the Las Vegas hotel near the shoe shop and the corner cafes. You buy tickets on the train and they are for a round trip, if you get off, you will need to pay again ( at least they were a couple of months ago ). There is also a senior ticket, which is a couple of Euros less. They are a good way of spending 45 - 50 mins sightseeing. You may be able to get a street map from the tourist info place that shows the busroutes, and train route. If you go to tarragona, that is also a good one, a little more expensive, but this does have an on and off facility.

We stayed there and it's just a short walk away. The stop is on the big roundabout outside the Michaelangelo store.

No. It used to be a few years ago. Now it's not. Fare is for round trip.

The tourist centre Salou has all the information. Their web site: visitsalou.cat Phone number: +34 977 35 01 02 Should have all the running times. Once your out there is are plenty of time tables up on boards with prices.

Not familiar with H10 however if you look online you will find timetable for the tourist train which may help since it shows the stops.

No, it just goes around Salou