Hi Hakeya
Not much to add more to what Bosuncat has already said in her review. I went to Costa de la Luz in May 2012 and really liked it. The hotel is fabulous right by the beach and it was not very busy time of the year. There were many nesting storks at this time of the year - you could see the nests on the electricty pylons as you drove past whilst on the excursions. Seville is really nice to visit - it was hotter in Seville. I would suggest that if you get a chance to visit Costa de la Luz then do go and you will not be disappointed.
Jaya
I want to see the storks! Looks as though I will have to go back Jaya.
Seriously. I enjoyed the trips I managed to go on. Stupidly I had gone with newish shoes and managed to get a blister on the side of my foot the first day so I was somewhat restricted movement wise. Added to problems with the humidity which made my ankles swell very badly I couldn't do the Columbus trip and the optional bird watching which was a shame.
The only thing I will say is that the hotel has not much around it apart from a few shops and Punta Umbria which is about a 20 minute walk away, although the taxis are cheap.
Seville WAS wonderful. Under normal walking conditions (for me anyway) I would have loved to have spent more time there. It's so easy to get around and has trams too.
I didn't use the local bus service but I gathered that it was good and reliable. One of the gentlemen took himself back to Seville I think on the last day. He caught a local bus to Huelva and from there to Seville.