Barcelona is one of the nicest cities in Europe, it is also the 6th largest with a population of over 5 m. The pace is fast, the sights are amazing, from the Barceloneta on the waterfront to the mountains of Montserrat. The architecture and art are unparalleled. We took the Hop On/Hop Off and for a one day stay, it is perfect. You see a lot and can take a closer look at anything that appeals. A great deal for 18 euros. Places to see would be the Expiatory Church of La Sagrada Familia, Park Gruell, Barceloneta, Las Ramblas, la Boqueria (off of Las Ramlblas), the Barri Gotic and La Seu. All these are places where you can get off the bus and spend some time discovering before heading back on the tour.
A beautiful little town. To see the Cathedral (well worth it), the old sections and the waterfront is very easy. The city provided shuttle buses from the port to the waterfront by the Cathedral for 5 euros round trip. Walking is not an option as the port is a long way away from the center of town, but taxis are plentiful and not too expensive. The Cathedral is well worth the entry fee and the old town around it is full of small plazas, nice little cafes and souvenir shops. A very pretty area to spend a very nice day. The food was excellent and the people are very friendly.
Antigua is one of the friendliest and safest islands in the Caribbean. The people are helpful and friendly. We walked through town without feeling threatened and were never accosted by sales people or taxi drivers. The cruise port/town of St. John's is NOT the prettiest area in Antigua, which is a beautiful island with many attractive spots, but the tourist shopping area is well kept and adequate as is the straw market.
Always a pleasure to visit St. Maarten. This time we took an excursion to visit Marigot on the French side. The tour was adequate, the bus was old and somewhat dirty, but the driver was very knowledgeable and thorough. It was a Sunday, so the French side was all closed up. Not much traffic and no shopping; most of the restaurants were closed as well. The driver told us that most of the shops and restaurants have closed permanently because the Euro is very high and Americans do not go any more. A pity because it is a very pretty area.