You do not need a diving certification to enjoy Sharm. Build a holiday around the beach, city evenings and inland scenery, adding water activities only when they match your comfort and interests.
Enjoy the coast at your own pace
Choose a hotel whose beach access suits the way you want to swim or relax. For a boat trip, ask about staying aboard during water stops and the comfort of the deck. Snorkelling is a separate choice from scuba diving; explain your swimming ability before booking rather than assuming every sea excursion suits a non-swimmer.
Add one inland experience
A desert safari gives a different landscape without requiring a diving programme. A canyon day involves walking and a longer journey; a Mount Sinai outing is more demanding again. Choose the level of activity you want and keep a restful day afterwards if needed.
Make the evenings part of the trip
Plan separate outings to Naama Bay, Old Market and SOHO Square. A walk, dinner and return transport make a complete evening without adding a tour every day. Leave some evenings at the hotel too, especially after a full-day excursion.