Translation of hefty in Spanish

After this strange stop we moved on to the city center where he left me. I was on my own now and started to explore the little streets of the old center. It was packed with international visitors.
We had time to walk around the waterfall but refrained from entering the little lake at the bottom. My fellow tourtakers were quiet nice and we spend a while just sitting in the grass near the water.
The express ferry took us to Macau, a Portuguese colony near the Chinese Guangdong province. Although the distance is not short the express ferry gets there in one hour and is totally modern and reliable.