Решение:
- wetsuit — You wear this when you want to go diving.
- sunscreen — You should always put some of this on before you stay in the sun.
- mug — This is what you buy to remember your holidays.
- map — You use this so you won't get lost.
- sandals — You wear these on your feet in the summer.
- backpack — You put things inside this and carry it on your back.
Ответ: wetsuit, sunscreen, mug, map, sandals, backpack.