Check out TripAdvisor's top new destinations for 2018Updated Mon February 19, 201810. Casablanca, Morocco 9. Nerja, Spain8. Rovinj, Croatia 7. Riga, Latvia6. San Jose, Costa Rica 5. Gdansk, Poland4. Halifax, Nova Scotia 3. Nairobi, Kenya 2. Kapaa, Hawaii 1. Ishigaki, Japan1 of 10Hide CaptionThe 10 cities that top the list may also top your bucket list very soon.