If we use airmiles we can fly to either Malaga, Barcelona or Rome for about 5 nights in half-term. DCs are 12 and 10. I can't decide and would appreciate thoughts on either of these places for my age kids. Thanks!
You may want to have a look at medresorts.net for great accommodation only in the Mijas-Costa region from £225 per apartment per week. They have availability for half term week, and although the accommodation is for 7 nights, you can arrive/leave at any point within the week.
rome was fantastic for my 3 which are the same age as yours roughly. loads to do, day trip out to Ostia antica and we stayed really centrally as well in an apartment through romeloft. pm me if you want more details but we had a fab break there. Barcelona is next on my wish list.