Mastercard/Visa card

Wondering if it would be worth our while getting a visa card before heading to Vanuatu in November. We have a mastercard and were wondering if many places accept this. Staying for 7 nights and not wanting to have to carry too much cash. At the moment tossing up between staying at Benjor Beach Club or Mangoes. Just myself and hubby going, for a relax and hopefully a days cruise. Look forward to hearing replies thanks.

I believe most resorts in Vila take Visa/MC/Amex.