Complex sentence: Upon arrival, they had to find the Bac Ho Statue in Rex Square to find the next clue, then traveled to the Mekong Delta in Cái Bè and found their next Detour; a choice between Easy Buy and Hard Sell.
Split into simpler sentences: Upon arrival, they had to find Bac Ho Statue in Rex Square and its next clue. The clue told them to travel to Mekong Delta in Cái Bè and get their Detour clue, given the teams a choice between Easy Buy and Hard Sell.