There will be free time in Teguise, which was the capital of Lanzarote until 1852; later it passed to Arrecife due to its status as a seaport, making Teguise the second most important town in Lanzarote.
Apart from enjoying the old town, on Sundays there is a nice market where you can enjoy the local gastronomy, handicrafts and souvenirs among many other things…