Mirena is a hormonal intrauterine device (IUD) that's inserted into the uterus for long-term contraception. Mirena prevents pregnancy for up to five years. Mirena is a hormonal intrauterine device (IUD) that can provide long-term birth control (contraception). The device is a T-shaped plastic frame that's inserted into the uterus, where it releases a type of the hormone progestin.
If you want to avoid the crowds and take advantage of lower prices, May, early June and September are the best times for an Alaska cruise. In May and early June the weather is drier; in September there are noticeably less mosquitoes than during the height of summer.
Most visitors come to Alaska from mid-May to mid-September, with the peak season from June 15th to August 15th. The peak period offers the most tour options, the best weather and the best wildlife viewing opportunities. Below is a breakdown of what is great and not so great about different travel time periods.