AppleCare+ T&L for iPhone 17 Pro Max abroad

From the UK article

If your iPhone is lost or stolen, you can get started on filing a claim at mysupport.apple.com/theftandloss. Your replacement will be shipped to you and cannot be picked up at a store. If you are travelling when you lose your iPhone, we can send your replacement to any of the countries where theft and loss is offered. For more details, visit support.apple.com/en‑gb/108053.

While what LD150 posts is good information, I strongly suggest you call Apple about this. While Spain is in the list of countries where AppleCare with T&L is available (AppleCare Theft and Loss Coverage for iPhone - Official Apple Support), the Canary Islands may not be part of this since they are a semi-autonomous region. I know I have seen threads where others in similar regions have had issues with Apple's coverage and you probably would prefer to have a clear yes or no about this before you go. This (admittedly old) thread says that Apple Spain will not ship to the Canary Islands. Does the Spanish Apple Online Store NOT s… - Apple Community This could also mean that Apple anywhere may not consider the Canary Islands to be within the coverage area.

My understanding is the Apple Authorized Reseller, Banana Computer does not sell Apple Care Plus with Theft and Loss. This most likely excludes the Canary Islands from receiving a replacement iPhone. M

My best advice, like Limnos, is to call to avoid and confusion or disappointment.