My wife and I just booked a 10 day Gems of the Baltic cruise on the HAL Noordam leaving Copenhagen on July 22. We are in our early 40's and will be celebrating our 15th wedding anniversary without kids!!!. I was hoping to benefit from the experience of others that have taken excursions in Tallinn, St. Petersburg, Helsinki, Stockholm, Visby and Berlin. I am particularly interested in understanding any benefits of taking a HAL vs. independent excursion for St. Petersburg. I realize that you need a Russian visa in order to take an independent excursion in St. Petersburg. Please share your experiences in terms of what you found to be the best experience, value, etc. Thanks.