Hurghada Submarine vs Semi-Submarine vs Glass-Bottom Boat
Hurghada offers three different ways to see the Red Sea without getting wet: a genuine submarine that dives below the surface, a semi-submarine that keeps its lower deck underwater while the rest stays afloat, and a glass-bottom boat that lets you look down through the hull from the surface. Families often ask which one suits young children, how long each trip takes, and how to tell them apart when booking.
This guide sets out what each vessel actually does, what children typically see through the windows, how long you should expect to be on board, and who each option suits best, so you can match the trip to your group before you book.
Submarine, semi-submarine or glass-bottom boat: the difference
A true submarine is a sealed vessel that dives below the waterline. Passengers sit in a cabin with round windows along each side, well under the surface, watching the reef at the depth the vessel reaches. It is the only one of the three that actually submerges.
A semi-submarine does not fully dive. Its lower deck sits below the waterline while the top of the boat stays above water, so passengers in the lower cabin look out through windows just beneath the surface while the vessel cruises slowly over the reef.
A glass-bottom boat stays entirely on the surface. Instead of a lower cabin, it has a glass panel set into the floor, and passengers look straight down through the hull as the boat moves over shallow coral.
All three let non-swimmers, young children, grandparents and anyone who prefers to stay dry see Red Sea fish and coral without snorkelling, and each works as a shorter alternative to a full boat and snorkelling day.
The Hurghada submarine: what you see and how it feels
A real submarine trip in Hurghada takes passengers out by boat to a launch point, then lowers them into an air-conditioned cabin with windows on both sides. The vessel then descends to reef depth, which is as close as most non-divers will get to an actual dive.
Through the windows, passengers typically see coral formations, reef fish moving around the structures, and the general shape of the seabed, often picked out by lights mounted outside the hull. A guide or recorded commentary usually points out what is visible as the submarine moves along the reef.
Because the submarine genuinely dives, there is a sensation of descending and of pressure changing slightly, which some children find exciting and others find unsettling. It is worth asking the operator about any age or height guidance before booking for very young children.
A submarine trip generally suits school-age children and adults who want the closest thing to diving without putting on a mask, and anyone curious about what a real dive feels like without the training.
The semi-submarine: gentler motion, still close to the reef
A Hurghada semi-submarine tour keeps most of the boat above the surface, with an underwater observation deck below. Passengers sit at windows just below the waterline, close enough to the reef to see coral and fish clearly, without the boat ever fully diving.
Because the vessel does not descend, the motion is gentler than a true submarine, and there is no sense of pressure change. This tends to suit toddlers and children who find the idea of diving unsettling, as well as adults who are prone to motion sickness.
Many semi-submarine trips are paired with a stop for swimming or snorkelling, so travellers who want to get in the water can do so after the underwater viewing section. The Semi-Submarine Cruise with Snorkel Stop is built around this combination.
For a family with a mix of ages, a semi-submarine often works well as a middle option: calmer than a dive, but closer to the reef and more immersive than a glass-bottom boat.
Glass-bottom boats: short, simple, close to shore
A glass-bottom boat is the simplest of the three. It stays on the surface throughout, with a panel of glass set into the floor that passengers look down through to see the reef below, usually in shallower water close to shore.
Because the boat never submerges and the viewing area is smaller, the trip is typically brief, and often works as a short add-on during a beach day or island excursion rather than as the main activity of the day.
The surface-level ride means minimal motion, which makes it a reasonable choice for anyone prone to seasickness, for babies, or for guests who want a quick look at the coral without committing to a longer boat trip.
Glass-bottom boats in Hurghada are often arranged informally through a hotel or beach kiosk rather than booked in advance through a tour operator, so availability and timing can vary more than with the submarine or semi-submarine trips.
What children actually see through the windows
On all three vessels, the main sights are reef fish moving in and out of coral, the shapes and colours of the coral itself, and occasionally larger fish passing by in open water. Visibility depends on the day's conditions, so clarity is not guaranteed to be the same every trip.
The submarine's deeper route tends to show a wider stretch of reef and more varied coral structure, since it travels along the formation at depth rather than staying near the surface.
The semi-submarine's shallower windows still give a clear, close view of fish and coral, and because the ride is calmer, younger children often stay settled and watching for longer than they would on a diving submarine.
A glass-bottom boat gives a shorter, more limited view, directly beneath the boat rather than along a stretch of reef, but it is enough to show young children fish swimming below them without any sense of motion beneath the surface.
How long each trip lasts
A submarine trip generally takes around an hour in total once the boat transfer to the launch point and the return are included, with the underwater section making up a portion of that time.
Semi-submarine trips run to a broadly similar length when booked on their own, and longer when paired with a snorkelling stop, since the schedule allows time in the water as well as time in the viewing cabin.
Glass-bottom boat trips are usually the shortest of the three, often closer to twenty or thirty minutes, since the boat stays near shore and does not need to travel out to a dive site or reef mooring.
If a full day out matters more than the exact length of the underwater viewing, pairing a semi-submarine ride with a beach stop, such as the Semi-Submarine Cruise with Snorkelling Stop, fills more of the day without adding a second separate booking.
Who each option suits
Non-swimmers and anyone who wants to see the reef without entering the water are well served by any of the three, since none require getting wet or wearing a mask and snorkel.
Families with toddlers or babies generally do better with a semi-submarine or glass-bottom boat, where the motion stays gentle and there is no descent. A true submarine suits children old enough to understand what is happening and sit calmly for the dive.
Travellers prone to seasickness should note that a submarine and a semi-submarine both involve some time at sea before and after the underwater section, while a glass-bottom boat, being shorter and closer to shore, usually involves less time afloat overall.
Anyone who also wants to snorkel or swim should look at trips that combine the viewing section with time in the water, rather than booking a viewing trip and a separate snorkelling boat on different days.
Combining the trip with snorkelling or a beach day
Several Hurghada boat trips build snorkelling into the same day as reef viewing, which suits travellers who want more than a single short ride. The Dolphin House Snorkelling Boat Trip is one example that mixes open-water snorkelling stops with the chance of seeing dolphins.
For a group with mixed interests, a day that includes a beach stop as well as snorkelling spreads activities across the hours rather than keeping everyone on the boat throughout. The Orange Bay Boat Trip with Snorkelling follows this pattern, with time on the water and time on the sand.
Island day trips such as the Mahmya Island Beach Retreat work well for families who want a full day out, with a beach and lunch included alongside the boat journey, rather than a short underwater-viewing excursion on its own.
Choosing between a dedicated submarine or semi-submarine trip and a broader day that includes snorkelling and a beach comes down to how much of the day you want spent on the water versus on the sand.
How to book a Hurghada submarine or semi-submarine trip
Submarine and semi-submarine trips in Hurghada are generally booked in advance through a tour operator or marketplace listing rather than arranged on the day, since places on board are limited and schedules are fixed around departure times.
Most listings include hotel pickup and drop-off as part of the booking, so check the pickup window given at the time of booking and be ready in the hotel lobby at the stated time, since departure points can differ by hotel area.
Bring sun cream, a hat and comfortable shoes for the boat transfer, along with any seasickness tablets if you are prone to motion sickness, since the viewing cabins can feel different from being out on open deck.
Glass-bottom boats are more often arranged locally, through a hotel tour desk or beach kiosk, so ask your hotel directly about departure times if that is the option you want rather than booking it as a standalone tour in advance.
Practical tips before you go
Morning departures tend to have calmer seas than later in the day, which makes for a steadier ride on any of the three vessels, particularly useful if travelling with young children or anyone prone to seasickness.
Pack a change of clothes if your trip includes a snorkelling stop, along with swimwear worn under your clothes so you are ready to get in the water without delay once the boat reaches the site.
Check what is included before booking, since some semi-submarine trips add a snorkelling stop and others are viewing-only, and the difference affects both the length of the day and what to bring.
If travelling with very young children, mention their age when booking so the operator can advise on suitability, particularly for a true submarine trip where the descent is more noticeable than on a semi-submarine or glass-bottom boat.