Hiking is a great option. They can explore different terrains, enjoy the fresh air and beautiful views. Another is cycling. They can ride through scenic routes and stop at interesting places. Picnicking in a park or by a lake is also fun. They can bring their favorite food and just relax in nature.
Rock climbing can be a thrilling activity for a husband and wife. It challenges them physically and they can support each other during the climb. Fishing is also a relaxing outdoor activity. They can sit by the water, chat and wait for the fish to bite. And going for a nature walk at dawn or dusk to enjoy the changing light and the sounds of nature is also wonderful.
Kayaking can be really exciting for a couple. They can paddle through calm rivers or along the coast. Gardening outdoors together can also be a great activity. They can plant flowers or vegetables and watch them grow. Bird - watching is another one. They can learn about different birds and observe their behavior in their natural habitats.