London

Here's an ideal itinerary for 3 days in London for a couple who have already visited the basics and are looking for some fun activities to do when it's hot:

Day 1:

• Start your day with a delicious breakfast at The Breakfast Club in Soho. They serve a variety of breakfast options including pancakes, eggs benedict, and avocado toast.
• After breakfast, head to the Sky Garden for some breathtaking views of the city. It's a free attraction, but you need to book your tickets in advance.
• Next, take a stroll through the beautiful Hyde Park. You can rent a paddle boat and enjoy the serene lake or have a picnic on the grass.
• In the evening, head to the Camden Market for some shopping and street food. You can find a variety of cuisines here, from Mexican to Chinese to Indian.

Day 2:

• Start your day with a visit to the Columbia Road Flower Market. It's a beautiful market with a variety of flowers and plants.
• Next, head to the Tower Bridge and take a tour of the bridge and the engine rooms. You can also walk on the glass floor and get a stunning view of the Thames River.
• After the tour, take a boat ride on the Thames River and enjoy the beautiful views of the city from the water.
• In the evening, head to the rooftop bar at the Queen of Hoxton for some drinks and live music.

Day 3:

• Start your day with a visit to the Kew Gardens. It's a beautiful botanical garden with a variety of plants and flowers. You can also take a walk on the treetop walkway and get a stunning view of the gardens.
• Next, head to the Notting Hill neighborhood for some shopping and brunch. You can find a variety of boutique shops and cafes here.
• In the evening, head to the Brixton Rooftop for some drinks and street food. They have a variety of food stalls and bars, and you can enjoy the beautiful views of the city from the rooftop.