Complete the sentences with the correct words

I. Complete the sentences with the correct words.
1. It's a s_ _ _ _ climb to the top of Ben Nervis tn the Scottish Hinghlands, but the view is worth it.
2. Over 1,500 people lost their lives in the early morning of 15 April 1912 when the Titanic sank in the i_ _ waters of the North Atlantic ocean
3. You can collect seashells from the s_ _ _ _ in the Maldives