If you have more time, you may visit the Wildlife SOS near Agra or take a flight to Jaipur to explore the pink city. If you have less time, you may skip Sikandra and Mehtab Bagh. It's best to avoid weekends as the tourist rush may result in long queues and waiting times at the monuments. Carry light cotton clothes, sunscreen, hats, and sunglasses to beat the heat and stay hydrated. Do not forget to respect local customs and traditions while visiting the holy sites.