São Martinho Beach, being a lagoon beach, is generally known for its calm and shallow waters, making it very safe for swimming, especially for families with children. The absence of strong currents and large waves typical of ocean beaches provides a peaceful environment. Water conditions are usually clear, offering a pleasant experience for casual swimming and wading. Always be mindful of local advisories, but overall, it's considered a very safe swimming spot.

The best time to visit São Martinho Beach for ideal weather is generally during the dry season, which typically runs from May to October. During these months, you can expect sunny skies, lower humidity, and pleasant temperatures, perfect for enjoying the beach and water activities. As a popular resort-side destination, it can attract visitors year-round, but outside of peak holiday periods, you might find a slightly less crowded experience while still enjoying excellent conditions.

São Martinho Beach is located in Praia do Bilene, which is accessible by road. Many visitors drive their own vehicles, often 4x4s, especially if exploring beyond the main tarred roads. From major cities like Maputo, it's a few hours' drive. Public transport options like chapa (minibus taxis) are available to Bilene town, and from there, local transport or resort shuttles can take you to the beach area. Availability of transport within Bilene is generally good, especially around the main resort areas.

São Martinho Beach is known for its resort-side appeal, meaning there are various lodging options ranging from comfortable resorts to guesthouses right on or very near the lagoon. These establishments often feature their own restaurants and bars, offering a mix of local Mozambican cuisine and international dishes, with a strong emphasis on fresh seafood. You can expect convenient access to dining and accommodation that caters to families and those seeking a relaxed, amenity-rich stay.

São Martinho Beach is exceptionally appealing for families due to its calm lagoon waters, which are ideal for young children to swim and play safely without the worry of strong ocean currents. The resort-side setting often means easy access to amenities, activities, and family-friendly facilities. The serene environment and beautiful sunsets create a relaxing atmosphere, making it a perfect destination for a stress-free family beach holiday with plenty of space for everyone to enjoy.