All rentals are fully insured by Boatflex up to 3.000.000 €if your boat is qualified on our standard terms. If not then you need to apply individual to First insurance to make sure your boat can be insured by them. See our standard terms under this link: https://www.boatflex.com/insurance/en.pdf You dont have to do anything if your boat lives up to our standard insurance terms. But if your boat do not qualify to our standard terms then you need to send an individual request for insurance approval. Be aware that as a boat owner it is your responsibility to check and make sure your boat is approved for insurance through Boatflex rentals via First.