On Sunday 4 August, there is the Romería in honour of the Virgen de Nuestra Señora de La Esperanza (Our Lady of Hope) in El Rosario. According to the town hall's calendar of fiestas, this pilgrimage takes place on the first Sunday in August each year.
Video: ROMERIA LA ESPERANZA 2018
Artisan Beer Festival & Crafts Fair in Poris de Abona (Arico)
On Saturday 3 August from 17:00 to midnight Arico is holding it's second annual Artisan Beer Festival in Poris de Abona (Arico) with live music, DJs and, of course, beers, as well as gastronomy, activities for the kids and the Feria Municipal de Artesanía (Municipal Crafts Fair).
II Feria de la Cerveza Artesanal de Arico
Güimar Summer Fest
Meanwhile, also on Saturday 3 August, running from 13:00 until midnight, in the Plaza de las Indias in Puertito de Güímar is the Bonchotour Dorada Güimar Summer Fest with gastronomic zone, mojitos zone and cocktail bar and music by Renzzo el Selector, La Maldita, Juana la Cubana, David Laurentini, Jessy la Ley and Beat Creator.
Bonchotour Dorada Güimar Summer Fest
Reportedly there is also a craft fair in the Avenida Príncipes de España, in El Tanque on Sunday 4 August, but I had no further details at time of publication.