Rendered stylishly contemporary by a 2017 refit, this immaculate 120-bed property is the obvious choice for spa-goers, with discounted day rates at the Thermes de Spa and a dedicated funicular car so you can get there in your dressing gown.
The on-site sauna and fitness facilities are free to guests; underground parking costs €18. Confusingly, Spa also has a second Radisson Blu, the manorial-style Balmoral 2km east.