1. Blue Lagoon is a geothermal spa located in Reykjavik, Iceland. The water in the lagoon is rich in minerals, including silica and sulfur, which are said to have healing properties for the skin. The average temperature of the water is around 100°F (38°C). The lagoon is man-made and was created from the runoff of a nearby geothermal power plant. It is one of the most popular tourist destinations in Iceland, attracting around 700,000 visitors every year.

2. Blue Lagoon is open every day of the year, with varying opening hours depending on the season. In the summer months (June-August), it is open from 8:00 am to 11:00 pm. In the winter months (September-May), it is open from 9:00 am to 9:00 pm. The contact number for Blue Lagoon is +354 420 8800.

3. Ticket prices vary depending on the package you choose. The basic package includes entrance to the lagoon, a towel, and a silica mud mask. Prices for this package start at ISK 6900 (approximately USD 55) per person. There are also several other packages available, including ones that include massages and meals. It is recommended to book in advance, as the lagoon can get very busy, especially during peak season. Blue Lagoon is located about 40 minutes from Reykjavik by car, and there are also several shuttle bus services available for an additional fee.