This weekend is a bank holiday in Lanzarote, as in the UK. The difference is it Canarian day. Its to celebrate the aniversary of the first parliament in the Canaries. I am not sure that local people are aware of the significance and this day now seems to be a day to celebrate the Canarian culture which is quite different from the mainland of Spain.
Many cultural activities and celebrations are arranged for the Day of the Canary Islands each year. Many schools hold extra classes about the Canary Islands’ history and culture and organize parties for their students in the days and weeks before the Day of the Canary Islands. Many people hold private parties at home or in restaurants on the evening of May 29. Celebrations are held during the day and into the evening on the Day of the Canary Islands
Public life is generally quiet on the Canary Islands on May 30. Many businesses and other organizations are closed. Many stores are closed but some bakers and food stores may be open. Public transport services generally run to a reduced schedule, although there may be no services in rural areas. Large events may cause some local disruption to traffic, particularly in town and village centers.
Regional or local authorities may move the public holiday to a different date. If May 30 falls on a Tuesday or Thursday, many businesses and organizations are also closed on Monday, May 29, or Friday, May 31. The Day of the Canary Islands is not a public holiday in the rest of Spain on May 30.