Positions quoted in this Preliminary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC. 
Some or all of the information contained in this Notice to Mariners may have been included on the ENCs affected.

3498(P)/25 PHILIPPINE ISLANDS  Luzon  Buoyage. Channels. Channel depth. Pilot boarding place. Port development. Breakwater. Anchor berths. Anchorage area. Quarantine anchorages. Depths. Wreck. Coastline.
Source: Philippine Notices 1/17/23, 2/25/23, 7/64/24, 8/80/24, 6/18/25, NAMRIA NAVPHIL 229/24, ENC PH5MHR40, Philippine Chart 1501 and UKHO

	1. *Extensive changes to charted detail have taken place within Manila and Approaches, including numerous changes to coastline, depths, anchorages and buoyage. The most significant of these are as follows:

	2. The existing buoyed channel leading into South Harbour has been removed.

	3. *A new buoyed channel with a least depth of 146m has been established between 14 34' .322N. , 120 53' .990E. and 14 34' .325N. , 120 57' .081E.

	4. *A new approach channel, marked by west cardinal buoys, has been established along a line joining the following positions:

		14 34' .32N. , 120 53' .99E.

		14 33' .71N. , 120 52' .12E.

		14 31' .97N. , 120 49' .88E.

		14 30' .66N. , 120 48' .99E.

		14 26' .16N. , 120 44' .02E.

	5. The pilot boarding place in position 14 33' .251N. , 120 56' .014E. has been moved to position 14 34' .000N. , 120 52' .990E.

	6. *The West Breakwater in position 14 34' .350N. , 120 57' .340E. has been shortened.

	7. *Depths less than charted exist within Manila South Harbour and Approaches. The most significant are as follows:

		Depth		Position

		87m		14 34' .762N. , 120 57' .494E.

		81m		14 34' .874N. , 120 57' .925E.

		79m		14 34' .825N. , 120 57' .957E.

		39m		14 33' .908N. , 120 57' .514E.

		42m		14 34' .183N. , 120 58' .407E.

		12m		14 34' .461N. , 120 58' .487E.

		20m		14 33' .772N. , 120 58' .264E.

	8. *Depths less than charted exist within the approaches to Pasig River. The most significant are as follows:

		Depth		Position

		45m		14 35' .306N. , 120 55' .750E.

		08m		14 35' .613N. , 120 57' .296E.

	9. *A stranded wreck has been reported in position 14 35' .454N. , 120 57' .041E.

       10. New quarantine anchorage areas have been established, bounded by the following positions:

		14 31' .21N. , 120 50' .21E.

		14 32' .14N. , 120 53' .80E.

		14 33' .99N. , 120 53' .83E.

		14 33' .55N. , 120 52' .02E.

		14 32' .92N. , 120 51' .88E.

		14 32' .63N. , 120 50' .78E.

		14 32' .27N. , 120 50' .79E.

		14 32' .19N. , 120 50' .18E.

	11. 	and

		14 31' .93N. , 120 45' .88E.

		14 30' .09N. , 120 45' .92E.

		14 30' .56N. , 120 47' .64E.

		14 32' .10N. , 120 48' .97E.

		14 32' .53N. , 120 48' .86E.

       12. A new anchorage area has been established, bounded by the following positions:

		14 33' .68N. , 120 50' .00E.

		14 33' .24N. , 120 47' .61E.

		14 32' .66N. , 120 47' .45E.

		14 33' .10N. , 120 49' .84E.

       13. New anchorage berths have been established in the following positions:

		14 33' .57N. , 120 54' .49E.

		14 32' .96N. , 120 54' .49E.

       14. The existing quarantine anchorage area and berths have been removed within an area bounded by the following positions:

		14 32' .851N. , 120 54' .996E.

		14 32' .852N. , 120 55' .672E.

		14 33' .910N. , 120 56' .737E.

		14 33' .908N. , 120 54' .999E.

       15. * The existing anchor berths have been removed within an area bounded by the following positions:

		14 34' .367N. , 120 55' .933E.

		14 34' .367N. , 120 57' .050E.

		14 34' .535N. , 120 56' .925E.

		14 34' .533N. , 120 55' .783E.

       16. *Depths less than charted exist within anchorages and approaches to Manila North Harbour. The most significant are as follows:

		Depth		Position

		91m		14 37' .212N. , 120 55' .583E.

		73m		14 37' .569N. , 120 56' .122E.

		46m		14 37' .769N. , 120 56' .367E.

       17. *There have been changes to depths in the International Port Basin and Berth 6, 14 36' .291N. , 120 56' .985E. , has been extended south-eastwards.

       18. Mariners are advised to navigate with caution in the area and consult the local port authorities for the latest information.

       19. Charts 3931, 3932 and 4491 will be updated when full details are available.

       20. *Former Notices 1452(P)/23, 2587(P)/23, 5034(P)/23 and 4895(P)/24 are cancelled.

           *Indicates new or revised entry

           (WGS84 DATUM)