Herculaneum is really one of my favorite ancient ruins. Far better than Pompeii. Mostly because it is less crowded, but also because it is better preserved fresco's and organic materials.
At port, there is a long shopping street inside the building build under the ruling of Mussolini. So be aware that it takes about 5 minutes to walk to the place where the buses are.
There were a lot of noise, so when the coordinators were announcing which tour should go their bus, we could hardly hear anything.
The guide we had was friendly, good sense of humor, and good English. The bus had A/C, which we were greatful for, as there was little wind in Herculaneum. Bring a fan or umbrella or something to give you either/and shade/wind on a sunny day in July.
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Royal Caribbean International