It's 2 dictionary words. Short and snappy!
There are several businesses that have used this name (Rum Bay) in the past, so it's quite common and well known. Whether you're such a business or simply looking for a domain name for an online portal, why not use Rumbay.com?
This domain name is owned by Vesica Limited, a software and publishing company based in the UK.
We own several other domain names that are not directly related to our line of work (that were registered by our directors before starting Vesica), so they are all available for sale.