Isla Mayor Fair 2018 - Wednesday, June 27 Wednesday, June 27↕ Thursday, June 28 Friday, June 29 Saturday, June 30 Sunday, July 1 23:00 Announcement and beginning of festivities. 01:00 Creative contests. Thu., Jun. 28> You can find out more on Fiestas.Net You might be also interested in: Saint Peter 2018 - Almonte (Huelva) - 43 Kms.