The most practical way is actually not to ride anything at all but just to walk because they are basically like across each other. If you don’t feel like walking, you may want to ride sikad (pedicab) going in the mall entrance.
For me, it is not ideal to suggest a jeep unless you are from Fuentes Street area (Pacifica Side) and basically, you can ride almost all jeepneys that is passing there going to Robinsons Iloilo (Main). These are:
ROUTE # 2 CALAPARAN CALUMPANG – ILOILO CITY PROPER
ROUTE # 7 COMPANIA – ILOILO CITY PROPER LOOP
ROUTE # 11 LA PAZ – ILOILO CITY PROPER VIA ISATU
ROUTE # 12A MANDURRIAO – MOLO VIA TABUCAN LOOP
ROUTE # 12B MANDURRIAO – VIA FESTIVE WALK TRANSPORT HUB LOOP
ROUTE # 13A HIBAO-AN – ILOILO CITY PROPER VIA TABUCAN HUB
ROUTE # 13B HIBAO-AN – ILOILO CITY PROPER VIA FESTIVE WALK TRANSPORT HUB
ROUTE # 15 MOLO – ILOILO CITY PROPER VIA BALUARTE LOOP
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