Although it might be a nice thought to put your group up in five-star accommodation for the duration of your trip, it certainly won’t help your budget. Instead, choose more affordable accommodation to reduce your costs. Depending on your group size, booking self-catering accommodation can be a great way to save money but with a larger group, the logistics of preparing meals can be difficult.
Alternatively, seek out hotels outside of the centre of the city and hire a bus to transport you and your group to where you need to go. Hotels outside of the CBD are usually much more affordable.