Siargao tips po please

Will be staying sa Siargao for almost 3 weeks. VA kami so mag wwork kami while staying. Madalas ba brown out? Gaano kadalas? What about signal? May pocket wifi ako with smart rocket sim kasi malakas daw signal ng smart. Pleaseeee need advice and tips lalo sa mga nag stay ng matagal at nag work. Thank you!