This year, the town of La Orotava, in the north of Tenerife, is holding its traditional Corpus Christi celebration on the 22nd June. On this occasion and to conclude the commemoration of the 500 anniversary of Orotava's foundation, the town is organizing an International Congress of Tapestry Artists (Congreso Internacional de Alfombristas) with participants from other Spanish towns and representatives from Europe, Asia and America.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.