There is going to be a Partial Eclipse of the sun happening down the western edge of Iberia on the 29th of March 2025.
It will be 32% in North-west Galicia but as the weather could be a problem there this tour will head south for the day of the eclipse. 
It is now starting from Portsmouth (to Bilbao) on the 18th March and will end in the first week of April. Friends from Australia are going to be joining the tour.
Planning is at a very early stage and as I already have some interested participants there is likely to be limited spaces available. First stop may be Avila and then via Merida to Sevilla where we will have time for exploring the Parque Nacional de Doñana before heading to the Algarve.