domain name specific to niche- help needed please

I am looking to set up a domain name for a holiday resort

The business will be giving offers to holiday makers

so the domain would look like the following

http://www.marbelladeals.com

or

http://www.marbella-deals.com

if customers search for marbella deals what would be the best option to register the first or the second

thanks for any input

First one!

But have you considered - cheaphotelsmarbella.com cheapresortsmarbella.com or holidaysmarbella.com

Do some keyword research!

Marbella Deals only 210 monthly searches [exact]
Marbella Holidays 1900 [exact]